ThaiFightDB

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Rajadamnern champions

Every champion we know of in each weight class, oldest first. A reign lasts until the next champion unless the note says it was vacated or stripped.

Mini Flyweight 105 lb 67

  1. December 23, 1976
    Ronachai Sunkilanongkhee def. Pannoi Sakornpitak
  2. March 25, 1977
    Wangwonnoi Lukmatulee def. Ronachai Sunkilanongkhee

    Wangwonnoi vacated the title in 1977.

  3. September 9, 1977
    Samernai Kietsongkram def. Phanmongkol Hor.Mahachai
    • drew with Jakrawan Kiatisaktewan on June 2, 1978.
  4. October 31, 1979
    Prabpipop Lukkhlongtan def. Samernai Kietsongkram

    The title was vacant as of October 1980.

  5. October 29, 1980
    Chamuakpet Hapalang def. Kiophit Chuwattana
    • def. Lankrung Kiatkriankgrai on July 23, 1981

    Chamuekpet vacated the title in 1981.

  6. July 14, 1982
    Maewnoi Singjakrawat def. Payapnoi Sor.Thanikul

    Maewnoi was stripped of the title on July 23, 1983, after he was dismissed in the last round of a title fight against Boonkerd Fairtex.

  7. 1983
    Boonkerd Fairtex def. Daengnoi Lukprabat
  8. November 1983
    Songwannoi Sitsahaphan def. Boonkerd Fairtex
    • def. Sahatchai Kiatkhanarom on August 1984

    Songwannoi was stripped of the title after failing to defend it within the required period in 1985.

  9. June 3, 1985
    Warunee Sor.Ploenjit def. Phed Na Ratchawat
    • drew with Daotrang Tor.Boonlert September 30, 1985
  10. January 30, 1987
    Maewpa Suanmiskawan def. Warunee Sor.Ploenjit
    • def. Warunee Sor.Ploenjit in 1987

    Maewpa vacated the title in 1988.

  11. March 24, 1988
    Dentaksin Kiatrattapon def. Maewpa Suanmiskawan

    Dentaksin vacated the title in 1988.

  12. June 5, 1989
    Songkram Por.Paoin def. Saksri Yutthakit
    • def. Haruhot Saktawee on July 9, 1989
    • def. Khamron Sor.Worapin on July 27, 1989
  13. September 27, 1989
    Robert Kaennorasing def. Songkram Por.Paoin

    Robert vacated the title in 1989.

  14. February 11, 1990
    Songkram Por.Paoin reign 2 def. Deenueng Thor.Pattanakit
    • def. Chuchai Kiatchansing on March 29, 1990
  15. June 30, 1990
    Khaimuktae Sitkuanyim def. Songkram Por.Paoin
    • def. Songkram Por.Paoin on August 15, 1990

    Khaimuktae was stripped of the title in October 1990 after failing to make weight for a defense against Khwanna Tor.Boonlert.

  16. November 14, 1990
    Songkram Por.Paoin reign 3 def. Yokphet Lukphrabat
  17. December 9, 1990
    Khomsan Saknarin def. Songkram Por.Paoin
  18. January 30, 1991
    Songkram Por.Paoin reign 4 def. Khomsan Saknarin
    • def. Denweha Sitkrupat on 1991
    • def. Jery Laothaicharoen on June 17, 1991
    • def. Chetha Majestic on November 13, 1991
    • def. Khamson Sor.Worapin in 1991
  19. February 19, 1992
    Saksri Yutthakit def. Songkram Por.Paoin
  20. July 29, 1992
    Songkram Por.Paoin reign 5 def. Saksri Yutthakit
    • def. Wiratnoi Singchachawan on September 28, 1992

    Songkram vacated the title in 1993.

  21. June 30, 1993
    Platong Jockygym def. Singsamphan Kiatsingnoi
  22. September 1, 1993
    Saksri Yutthakit reign 2 def. Plathong JockyGym
  23. October 6, 1993
    Wongkod Lukprabaht def. Saksri Yutthakit
  24. December 22, 1993
    Singsamphan Kiatsingnoi def. Wongkod Lukprabaht
    • def. Chanchai Sarina on February 6, 1995
  25. September 26, 1995
    Samliang Singmanee def. Singsamphan Kiatsingnoi
  26. 1996
    Singsamphan Kiatsingnoi reign 2
    • def. Terdthailek Sarina on August 28, 1996
  27. 1997-1998
    Denchai Lukbanyai def. Chaded Sor.Bunnak

    Denchai vacated the title in 1998.

  28. October 13, 1997
    Jadet Sor.Boonnak def. Singsamphan Kiatsingnoi
  29. November 18, 1998
    Anuwat Kaewsamrit def. Klangsuan Sasiprapagym

    Anuwat vacated the title in 1999.

  30. 1999
    Roicheng Sor.Ruangsiri def. Morakotdaeng Sitamnuay

    Roicheng vacated the title in 2000.

  31. 2000
    ชนะศึก เอส.เค.วี.ยิมส์
  32. July, 2004
    Nampetch Sor.Tantip
  33. 2005
    Panfah Sor.Damrongrit

    Panfah vacated the title in 2005.

  34. 2005
    Palangpon Piriyanoppachai
  35. January 19, 2006
    Binla Meenayothin def. Palangpon Piriyanoppachai

    Binla vacated in 2006.

  36. October, 2007
    Soodpatapee Detrat def. Pakorn Sakyothin
  37. 2008
    Teva Sitkunma

    Teva vacated the title 2009.

  38. November 26, 2009
    Fahsawang Tor.Siangtiennoi def. Yodprabsuek Sittanaiodd

    Fahsawang vacated the title 2010.

  39. June 10, 2010
    Prajanchai Por.Phetnamtong def. Tiankao Tor.Sangtiennoi
  40. September 15, 2010
    Superbank Mor Ratanabandit def. Prajanchai Por.Phetnamtong

    Superbank vacated the title 2011.

  41. February 21, 2011
    Prajanchai Por.Phetnamtong reign 2 def. Tee-Us Kor.Rachada
  42. April 25, 2011
    Detkart Por.Pongsawang def. Prajanchai Por.Phetnamtong

    Detkart vacated the title in July 2011.

  43. 2012
    Phet Lookmakarmwan

    Phet vacated the title 2012.

  44. September 20, 2012
    Panpayak Jitmuangnon def. Detkart Por.Pongsawang
    • def. Yodmanoot Petpotong on January 17, 2013

    Panpayak vacated the title in 2013.

  45. February 21, 2013
    Sanchai Tor.Laksong def. Kumandoi Petcharoenvit
  46. August 5, 2013
    Phetmuangchon Por.Suantong def. Sanchai Tor.Laksong

    Phetmuangchon vacated the title in 2014.

  47. August 11, 2014
    Ongree Sor.Dechapan def. Rit Jitmuangnon

    Ongree vacated the title in 2014.

  48. August 6, 2015
    Yodbuadaeng Sor.Sirilak def. Ongree Sor.Dechapan

    Yodbuadaeng vacated the title in 2016.

  49. October 13, 2016
    Anuwat Natkinpa def. Kaodaeng Sujibamikiew
  50. March 1, 2017
    Saengtawan Chor.Hapayak def. Anuwat Natkinpa

    Saengtawan vacated the title in 2017.

  51. June 15, 2017
    Fahbunmee BirdRangsit def. Kumantong Chor.Hapayak

    Fahbunmee vacated the title 2017.

  52. 2018
    Wanmawin Phumpanmuang

    Wanmawin vacated the title in 2018.

  53. July 26, 2018
    Hercules Phetsimean def. Ittipon Lookkhlongtan
  54. December 9, 2018
    Nadaka Yoshinari def. Hercules Phetsimean

    Yoshinari vacated the title in May 2019 in order to move to light flyweight.

  55. September 9, 2019
    Ryuya Okuwaki def. Mungkornyok AnnyMuayThai

    Okuwaki vacated the title in February 2020.

  56. September 23, 2020
    Rittidet Sitkrudet def. Superbright Por.Pikanes

    The title was retired in 2021 due to the COVID-19 pandemic..

  57. February 17, 2022
    Petchpanat Nor.AnuwatGym def. Nuapayak Wor.Sungprapai

    Petchpanat vacated the title in 2022.

  58. September 22, 2022
    Laempo Sitkhunwasan def. Mungkornpetch Por.Muanchai

    Laempo vacated the title in 2023.

  59. May 11, 2023
    Chalamchon SamartPayakaroonGym def. Denpadang Daengrotdee
    • def. Dokmaifah Rodsuijajetsaiprew on November 30, 2023
  60. February 1, 2024
    Duan99 SorJor.Tongprachin def. Chalamchon SamartPayakaroonGym
  61. May 23, 2024
    Chalamchon SamartPayakaroonGym reign 2 def. Duan99 SorJor.Tongprachin
  62. November 14, 2024
    Phettaweechai Fightermuaythai def. Chalamchon SamartPayakaroonGym

    Phettaweechai vacated the title in 2025.

  63. March 1, 2025
    Chalamchon Or.Thepsupha def. Sungfah Nor.Anuwatgym
  64. May 3, 2025
    Kradooklek Or.Atchariya def. Sungfah nor.AnuwatGym for the interim title
  65. August 2, 2025
    Kradooklek Or.Atchariya reign 2 def. Chalamchon Or.Thepsupha
  66. December 13, 2025
    Chalamchon Or.Thepsupha reign 2 def. Kradooklek Or.Atchariya
  67. March 28, 2026
    SingSurat Or.UdUdon champion def. TapThai YuttakanMuayThai for the interim title
    • def. LaoStar Kiattongyot on May 30, 2026

Light Flyweight 108 lb 64

  1. November 22, 1973
    Raklek Chutinawee def. Lomnao Thepphaksin

    Raklek vacated the title in 1974.

  2. December 18, 1974
    Singnum Phetthanin def. Nongrak Singkrungthon

    The title was vacant as of June 1, 1975.

  3. 1977
    Fuangnoi Rojsongkhram

    Fuangnoi vacated the title in 1977.

  4. October 31, 1977
    Sornnarai Sakwitthaya def. Yodded Singsornthong
  5. 1978
    Khaokrachang Loekchai def. Sornnarai Sakwitthaya

    The title was vacant as of 1978.

  6. 1978–1979
    Sornnarai Sakwitthaya reign 2 def. Prankrungnoi Wangchomphun
    • def. Bandasak Phorntawee
    • def. Niyom Lukmatulee
  7. August 28, 1978
    Chancheing Bor.Kor.Sor def. Sira Singthong
  8. October 9, 1980
    Prathep Kiatsingnoi def. Samernai Kietsongkram
    • def. Den Chuwattana on April 29, 1981.
  9. January 12, 1983
    Namphon Chomphuthong def. Arwut Sor.Thanikul
    • drew with Singnoi Petchthanin on July 8, 1983.
  10. May 7, 1983
    Sakawphet Kiatphetnoi def. Namphon Chomphuthong
  11. October 28, 1985
    Fahlan Lukprabat def. Singnoi Petchthanin
  12. August 11, 1986
    Wanghin Por Chaiwatt def. Fahlan Lukprabat
  13. October 12, 1987
    Veerapol Sahaprom def. Pewphong Sitbobai

    Veeraphol vacated the title in 1988.

  14. July 27, 1988
    Saeksan Sitjomthong def. Paennoi Chuwattana
  15. 1989
    Paennoi Chuwattana def. Saeksan Sitjomthong
    • def. Sahatsachai Kiatprawit on March 21, 1990

    Paennoi vacated the title in 1991.

  16. January 1991
    Khaimuktae Sitkuanyim def. Deung Thor.Phatthanakit
  17. May 27, 1991
    Namkabuan Ratchapeutkafe def. Khaimuktae Sitkuanyim
  18. December 23, 1991
    Silapathai Jockygym def. Namkabuan Ratchapeutkafe
    • def. Thongchai Sor.Korakot on March 30, 1992

    Silapathai vacated the title in 1992.

  19. 1992-1993
    Choengnoen Sitphutthapim def. Wiratnoi Singchatchawan

    Choengnoen vacated the title in 1993.

  20. 1993
    Chatchai Sor Suwanapakdi
  21. July 21, 1993
    Panthong Honghaocafe def. Chatchai Phetnamchai
  22. November 10, 1993
    Platong Jockygym def. Chatchai Sor.Suwanpakdee ▶ watch the title fight
  23. 1994-1995
    Ranong Saengmorakot
  24. November 23, 1994
    Fighta Palangroup def. Plathong Jockygym
  25. February 6, 1995
    Sanphet P.K.Gym def. Ranong Saengmorakot
  26. April 12, 1995
    Lukdod Sor.Tamarangsri def. Sanphet P.K.Gym
    • def. Panomrung Kiatkormluang on May 31, 1995
  27. September 27, 1995
    Fighta Palangroup reign 2 def. Lukdod Sor.Tamarangsri

    Fighta vacated the title in 1997.

  28. December 24, 1997
    Chanrit Sit-O def. Noppakao Sor.Wanachai

    Chanrit vacated the title in 1998.

  29. 1998
    Saenchoenglek Jirakriangkrai def. Saenkeng Sor.Thanatawan
  30. September 9, 1998
    Chaomailek Sor.Thantawan def. Saenchoenglek Jirakriangkrai

    Chaomailek vacated the title in 1999.

  31. June 10, 1999
    Anuwat Kaewsamrit def. Kayasit Sakmuangklaeng

    Anuwat vacated the title in 1999.

  32. 2000s
    Fasang Tor.Phitakchai
  33. February 2, 2000
    Nopdetlek Chuwattana def. Yodkriangkrai Thor.Liwkhachonsak
  34. 2001
    Samrandet Sor.Danchai def. Nopdetlek Chuwattana
  35. November 26, 2001
    Pirabkao Por.Priya def. Samrandet Sor.Danchai

    The title was vacant as of July 1, 2002.

  36. August 1, 2002
    Kwanpichit Hor Pattanachai def. Dato V.P.P. Gym
  37. 2004
    Rungrat Naratrikul

    The title was vacant as of November 1, 2005.

  38. November 16, 2005
    Linglom Tor.Chalermchai def. Luknimit Singklongsi

    Linglom vacated the title in 2006.

  39. December 26, 2006
    Luknimit Singklongsi def. Fahsang Tor.Pitakchai
  40. 2007
    Rungrat Naratrikul reign 2 def. Anchai Kiatyongyut
  41. 2008
    Palangpon Piriyanoppachai
  42. September 17, 2009
    Yodtongthai Por.Telakun def. Palangpon Piriyanoppachai

    Yodtongthai vacated the title in 2010.

  43. 2010
    Ngaoprajan Chuwattana
  44. 2011
    Trakunphet Thanasakkunsong

    Trakunphet vacated the title in 2011.

  45. June 2, 2011
    Dang Sor.Ploenjit def. Prakaithong Sitnoi
  46. July 21, 2011
    Dedkart Por.Pongsawang def. Dang Sor.Ploenjit
    • def. Prajanchai Por.Phetnamtong on August 18, 2011
  47. June 6, 2012
    Sangmanee Sor Tienpo def. Dedkart Por.Pongsawang

    Sangmanee vacated the title in 2012.

  48. May 2, 2013
    Panpayak Jitmuangnon def. Ruengsak Sitniwat

    Panpayak vacated the title in 2013.

  49. August 14, 2014
    Phetmuangchon Por.Suantong def. Kumandoi Sor.Jitpakdee
  50. May 7, 2015
    Kwandom Phetsimean def. Phetmuangchon Por.Suantong

    Kwandom vacated the title in 2015.

  51. May 9, 2016
    Rungnarai Kiatmuu9 def. Satanmuanglek Numpornthep

    Rungnarai vacated the title in 2017.

  52. March 12, 2018
    Yoktong Pinsinchai def. Chanalert Meenayothin

    Yoktong vacated the title in 2018.

  53. September 13, 2018
    Chanalert Meenayothin def. Praewprao PetchyindeeAcademy

    Chanalert vacated the title in 2018.

  54. November 22, 2018
    Praewprao PetchyindeeAcademy def. Phetanuwat Nor.Anuwatgym
  55. July 11, 2019
    Sangfah Nor.AnuwatGym def. Praewprao PetchyindeeAcademy
    • def. Chaiyo PetchyindeeAcademy on September 5, 2019
  56. December 5, 2019
    Praewprao PetchyindeeAcademy reign 2 def. Sangfah Nor.Anuwatgym

    Praewprao vacated the title in 2020.

  57. December 3, 2020
    Anantachai KittyMuaythai def. Tahanaek Nayokatasala

    Anantachai vacated the title in 2021.

  58. February 7, 2022
    Phetsiam Jor.Pattreya def. Petchmawin Singmawynn

    Phetsiam vacated the title in 2022.

  59. September 25, 2022
    Petchpanom Sor.Salacheep def. Singdam YutSurat
  60. July 30, 2023
    Petchneung PetchMuayThai def. Petchpasak Sor.Salacheep
    • drew with Domthong Lukjaoporongtom on November 25, 2023
  61. February 3, 2024
    Domthong Lukjaoporongtom def. Petchneung PetchMuayThai
    • def. Boonchai Sor.Boonmeerit on November 16, 2024
  62. June 21, 2025
    Laempo Sitkhunwasan def. Domthong Lukjaoporongtom
  63. August 23, 2025
    Duan99 SorJor.TongPrachin def. Laempo Sitkhunwasan
    • def. Laempo Sitkhunwasan on January 31, 2026
  64. May 16, 2026
    Chalamchon Or.Thepsupha champion def. Kradooklek Or.Atchariya for the interim title

Flyweight 112 lb 74

  1. 1960
    Kwanyuen Sitsing
  2. October 19, 1961
    Plainoi Ror.For.Tor def. Payaknoi Sitthiamlee

    Saenchai Therdthai and Khunphaen Muangthong fought to a draw for the vacant belt on January 8, 1963.

  3. 1963
    Payaknoi Sitthiamlee
  4. March 21, 1963
    Suchart Srisothon def. Payaknoi Sitthiamlee
    • def. Sankuansak Itthianuchit in 1963

    The belt was vacant as of June 1, 1963.

  5. June 6, 1963
    Saenchai Therdthai def. Khunpaen Muangthong
  6. 1964
    Suchart Srisothon reign 2
  7. May 21, 1964
    Pacchai Srijanphos def. Suchart Srisothon
    • def. Sinchainoi Laemfahpa on June 24, 1965
  8. 1966–1967
    Jomkitti Singphaniang
    • def. Samingthong Jiraphan on July 26, 1967
  9. June 9, 1968
    Fahsai Twaeechai def. Rittichai Lukkaowjao
  10. 1971
    Chainoi Sor.Siripan def. Noknoi Singthanongsak

    Chainoi was stripped of the title after being knocked out by Samersing Tianhiran in a non-title fight in 1972.

  11. 1973
    Samersing Tianhiran def. Chainoi Sor.Siripan

    Samersing vacated the title in 1973.

  12. February 13, 1974
    Naret KiatChor.Por. def. Rueanpae Sitwatnang
  13. April 20, 1974
    Ruengsak Porntawee def. Naret KiatChor.Por

    Ruengsak vacated the title in 1974.

  14. November 30, 1974
    Raklek Chutinawee def. Kotchasarn Pongchalon

    Raklek vacated the title in 1975.

  15. July 15, 1976
    Kengkaj Kiatkriangkrai def. Numtanong Suanmiskwan

    Kengkaj vacated the title in 1977.

  16. May 2, 1977
    Tawanook Sitpoonchai def. Khaosod Sitpraprom
    • def. Jomwo Sakniran on June 2, 1977

    Tawanook vacated the title in 1977.

  17. August 7, 1978
    Phanmongkol Hor.Mahachai def. Bangsai Kongkalai
    • draws with Thong Petchyindee on April 5, 1979
    • def. Thong Petchyindee on December 24, 1979
    • def. Fakramram Lukphrabat on February 5, 1981
  18. May 30, 1981
    Phetnoi Manukiat def. Phanmongkol Hor.Mahachai
  19. August 19, 1981
    Phanmongkol Hor.Mahachai reign 2 def. Phetnoi Manukiat

    Phanmongkol vacated the title in 1982.

  20. December 24, 1982
    Lankrung Kiatkriankgrai def. Boonam Sor.Jarunee
    • def. Chaowalit Sitpraprom on May 12, 1983
    • def. Chaowalit Sitpraprom on August 24, 1983
  21. October 1, 1984
    Sangyuth Thianhiran def. Lankrung Kiatkriankgrai
  22. November 21, 1984
    Boonam Sor.Jarunee def. Sangyuth Thianhiran
    • def. Daoden Sor.Sukasem on March 6, 1985
    • def. Detduang Por.Pongsawang on June 24, 1985

    Boonam vacated the title in 1985.

  23. September 16, 1985
    Sangyuth Thianhiran reign 2 def. Detduang Por.Pongsawang
  24. October 17, 1985
    Nopachai Lukmingkwan def. Sangyuth Thianhiran
    • draws with Panomtuanlek Hapalang on February 13, 1986
  25. August 11, 1986
    Lukchang Sitchang def. Nopachai Lukmingkwan
  26. April 11, 1987
    Waifai PraphatMotors def. Lukchang Sitchang
  27. June 15, 1987
    Boonmee Sitchuchon def. Waifai PraphatMotors
  28. February 18, 1988
    Smeunoi Tor Boonlert def. Boonmee Sitchuchon
  29. March 24, 1988
    Veerapol Sahaprom def. Samernoi Tor.Boonlert
  30. January 15, 1989
    Dennuea Denmolee def. Veeraphol Sahaprom
  31. June 5, 1989
    Kaensak Sor Ploenjit def. Dennuea Denmolee

    Kaensak vacated the title in 1989.

  32. May 10, 1990
    Smeunoi Tor Boonlert reign 2 def. Thanongdet Kiatphayathai
    • def. Supernoi Sor.Khettalingchan on November 29, 1990
    • def. Singnoi Sor.Prasartporn on December 31, 1990
  33. January 30, 1991
    Banluedet Lukprabaht def. Samernoi Tor.Boonlert
  34. March 20, 1991
    Singnoi Sor Prasertporn def. Banluedet Lukprabaht

    Singnoi vacated the title in 1991.

  35. April 24, 1991
    Banluedet Lukprabaht reign 2 def. Samernoi Tor.Boonlert
  36. July 17, 1991
    Smeunoi Tor Boonlert reign 3 def. Banluedet Lukprabaht

    Samernoi was stripped of the title after being disqualified for a knee to the groin during a defense against Banluedet on September 12, 1991.

  37. December 23, 1991
    Namtaothong Sor Sirikul def. Samernoi Tor.Boonlert ▶ watch the title fight
  38. July 13, 1992
    Thapisut Sor.Maliwan def. Namtaothong Sor.Sirikul

    Thapisut was stripped of the title after missing weight for his defense against Kukkong on December 12, 1992.

  39. December 12, 1992
    Kukkong Por.Surasak def. Thapisut Sor.Maliwan

    Kukkong vacated the title in 1993.

  40. 1993
    Kwanna Tor.Boonlert def. Rolex Kaennorasing
  41. 1993
    Chatchai Sor Suwanapakdi
  42. November 28, 1994
    Rolex Kaennorasing def. Chatchai Sor.Suwanpakdee
    • def. Chatchai Sor.Suwanpakdee on June 5, 1995
  43. 1996
    Platong Jockygym
  44. 1996-1997
    Asawin Kiatmonthep

    Asawin vacated the title in 1997.

  45. October 22, 1997
    Lanna Por.Phisut def. Boonchu Sor.Narongchai
  46. February 3, 1999
    Boonlert Pot.Thawatchai def. Lanna Por.Phisut

    Boonlert vacated the title in 1999.

  47. 2000
    Pornnimat Kaitchansing

    Pornnimat vacated the title in 2000.

  48. 2000
    Chomputhong Kiatniwat def. Thamindong Na Rachawat
  49. ?
    Orono Sor.Sakulpan
  50. 2001–2002
    Pongsing Kiatchansing
  51. 2003
    Kwanphichit Hor.Pattanachai
  52. October 26, 2003
    Chatchainoi Sitbenjama def. Kwanphichit Hor.Pattanachai

    Chatchainoi vacated the title in 2003.

  53. 2004
    Kanid Sitkhrusem
  54. 2005
    Mapralong Sitpotarn
  55. 2008
    Denmoo9 Soonkelahuaytom
  56. 2010
    Ponkrit Numplatahoimook
  57. 2011
    Lamnamoon Sakchaichot
  58. May 17, 2012
    Prajanchai Por.Phetnamtong def. Meethee Kiatpratoom
  59. November 9, 2012
    Sangmanee Sor Tienpo def. Prajanchai Por.Phetnamtong

    Sangmanee vacated the title in 2012.

  60. 2013
    Trakunphet Sor.Sommai

    Trakunphet vacated the title in 2013.

  61. June 5, 2014
    Nichao Suwitgym def. Petrat Wor Wiwatananon

    Nichao vacated the title in 2014.

  62. 2015
    Konkhodai Wor.Wiwattananon
  63. May 6, 2015
    Dokmaidaeng J.S.P def. Konkhodai Wor.Wiwattananon
  64. May 12, 2016
    Saoek KesaGym def. Dokmaidaeng J.S.P

    Saoek vacated the title in 2017.

  65. June 3, 2017
    Chatploy Sor.Punsawat def. Chokdee Maxjandee

    Chatploy vacated the title in 2018.

  66. August 8, 2018
    Phetsommai Sor.Sommai def. Chokploengrit Por.Lakboon
    • def. Den Sor.Phet-Udon on July 4, 2019
  67. November 25, 2019
    Phetsomjit Jitmuangnon def. Phetsommai Sor.Sommai

    Phetsomjit vacated the title in 2019.

  68. March 24, 2022
    Petchdet Wor.Sangprapai def. Dinnuathong Muadpong191
  69. September 29, 2022
    Paeyim Sor.Boonmerit def. Petchdet Wor.Sangprapai

    Paeyim vacated the title in 2023.

  70. May 18, 2023
    WaeoWao Wor.Wangprom def. KaenUbon Por.Lakboon
  71. July 9, 2023
    Nadaka Yoshinari def. WaeoWao Wor.Wangprom
    • def. Rungwittaya Lukjaomaesaithong on August 12, 2023
  72. October 5, 2023
    KaenUbon Por.Lakboon def. WaeoWao Wor.Wangprom for interim title

    Yoshinari vacated the title in December 2023 in order to move to super flyweight.KaenUbon was promoted to undisputed champion.

  73. —
    KaenUbon Por.Lakboon reign 2
    • def. Forwin Mor.Rattanabandit on February 1, 2024
    • def. Sakonpat ChotBangsaen on March 16, 2024
  74. August 15, 2024
    Jigsaw NayoksoywiangyongLamphun champion def. KaenUbon Por.Lakboon
    • def. Ryuya Okuwaki on February 15, 2025
    • def. WaeoWao Wor.Wangprom on May 17, 2025
    • def. Singdam Kiatfufueng on December 20, 2025
    • def. Duan99 SorJor.TongPrachin on June 27, 2026

Super Flyweight 115 lb 51

  1. March 5, 1980
    Thong Petchyindee def. Sarana Kiattisakkongka
    • def. Maewpa Sitchang on May 15, 1980
  2. 1981
    Samingnum Sithiboontam def. Thong Petchyindee

    Samingnum vacated the title upon winning it in 1981.

  3. March 4, 1981
    Petchmongkol Kiatsingnoi def. Thong Petchyindee

    Petchmongkol vacated the title upon winning it in 1981.

  4. June 4, 1981
    Thong Petchyindee reign 2 def. Samingnum Por.Thawachai
  5. June 2, 1983
    Phayanoi Sor Thasanee def. Samernai Ketsongkram
    • def. Nokweed Devy on November 27, 1983
    • def. Nopchai Lukmingkwan on September 20, 1984
  6. August 1985
    Boonam Sor.Jarunee def. Phayanoi Sor Thasanee
  7. October 24, 1985
    Phisuj Sor.Jitpattana def. Boonam Sor.Jarunee
  8. August 11, 1986
    Panomtuanlek Hapalang def. Phisuj Sor.Jitpattana

    Panomtuanlek vacated the title in 1986.

  9. October 29, 1986
    Boonam Sor.Jarunee reign 2 def. Ruengchai Thairungruang
    • def. Ruengchai Thairungruang on December 25, 1986
  10. January 29, 1987
    Lankrung Kiatkriangkrai def. Boonam Sor.Jarunee

    Lankrung vacated the title in 1987.

  11. August 24, 1987
    Wanpichit Kaennorasing def. Phayakdam Yutthakit
    • def. Boonmee Sitchuchon on October 12, 1987

    Wanpichit vacated the title in 1987.

  12. March 24, 1988
    Kanongmek Chompoothong def. Wanghin Por.Chaiwat
    • def. Saichon Pichitsuk on November 24, 1988

    Kanongmek vacated the title in 1989.Rajasak Sor.Vorapin and Ekaphon Chuwattana fought to a draw for the vacant belt on June 15, 1989.

  13. July 13, 1989
    Rajasak Sor Worapin def. Ekaphon Chuwattana

    Rajasak was stripped of the title in 1990.

  14. May 9, 1990
    Dennuea Denmolee def. Kongfah Lukthapfah
    • def. Daonapa Kiatsamran on January 30, 1991
  15. December 19, 1991
    Lakhin Wassandasit def. Dennuea Denmolee
    • def. Singnoi Sor.Prasatporn on January 23, 1992
    • def. Burklerk Pinsinchai on March 19, 1992
  16. September 28, 1992
    Saenmuangnoi Lukchaopormahesak def. Lakhin Wassandasit

    Samson vacated the title in 1993.

  17. June 23, 1993
    Veerapol Sahaprom def. Silapathai Jockygym ▶ watch the title fight
    • def. Duangsompong Por.Pongsawang on February 17, 1994
    • def. Chartchainoi Chaorai-Oi on June 22, 1994

    Veeraphol vacated the title in 1994.

  18. December 22, 1994
    Kasemlek Kiatsiri def. Saencherng Sinwatcomputer
  19. May 29, 1995
    Pongpayak Thammakesem def. Kasemlek Kiatsiri
  20. 1996
    Newsaencherng Pinsinchai
    • def. Saenthanong Lukbanyai on March 4, 1996.
    • def. Srisatchanalai TaxiMeter on July 22, 1996.

    Newsaencherng vacated the title in 1997.

  21. December 8, 1997
    Srisatchanalai TaxiMeter def. Yodthanu Daopaetriew

    Sisatchanalai vacated the title in 1998.

  22. 1999
    Lerdsila Chumpairtour def. Peesadaeng Kor.Kumanont
    • def. Peesadaeng Kor.Kumanont on May 19, 1999
    • def. Saenchoenglek Jirakriangkrai on September 29, 1999

    Lerdsila vacated the title in 1999.

  23. 1999
    Anuwat Kaewsamrit

    Anuwat vacated the title upon winning it in 2000.

  24. May 31, 2001
    Thongchai Tor Silachai def. Sayannoi Kiatprapat
    • def. Sayannoi Kiatprapat in 2001
  25. February 26, 2003
    Phongsing Kiatchansing def. Thongchai Tor.Silachai
    • def. Saenchainoi ToyotaRayong on October 16, 2003
  26. December 25, 2003
    Chatchainoi Sitbenjama def. Phongsing Kiatchansing

    The title was vacant as of January 2005.

  27. 2005
    Tubnar Sitromsai
  28. February 14, 2005
    Pornsanae Sitmonchai def. Wannar Kaennorasing

    Pornsanae vacated the title in 2005.

  29. 2006
    Detnarong Sitjaboon
  30. June 19, 2008
    Khaimookdam Sit-O def. Daoden Singklongsi
  31. July 10, 2008
    Pakorn Sakyothin def. Khaimookdam Sit-O

    Pakorn vacated the title in 2009.

  32. 2009
    Pudpadnoi Muangsima
  33. September 23, 2010
    Yodtongthai Por.Telakun def. Yodmongkol Muangsima
  34. 2011
    Fahsawang Tor.Sangtiennoi

    Fahsawang vacated the title in 2012.

  35. August 18, 2011
    Superbank Sakchaichote def. Yodtongthai Por.Telakun

    Superbank vacated the title in 2011.

  36. February 21, 2013
    Sangmanee Sor Tienpo def. Inseekao Rachanon

    Sangmanee vacated the title in 2013.

  37. June 2014
    Chaisri Sakniranrat def. Trakunphet Sor.Sommai

    Chaisiri vacated the title in 2014.

  38. January 15, 2015
    Sprinter Pangkongprab def. Kengkla Por.Pekko

    Sprinter vacated the title in 2015.

  39. August 6, 2015
    Jomhod Eminentair def. Chaisiri Saknirunrath

    Jomhod vacated the title in 2015.

  40. June 9, 2016
    Puenkon Tor.Surat def. Prajanban Sor.Jor.Wichitmuangpadrew
    • def. Gingsanglek Tor.Laksong on December 21, 2016

    Puenkon vacated the title in 2017.

  41. November 2, 2017
    Phetsuphan Por.Daorungruang def. Nong Rose Barnjaroensuk
    • def. Fahmongkhol Taembangsai on January 24, 2018
    • def. Kumandoi Petcharoenwit on March 5, 2018
    • def. Kongmuangtrang Kaewsamrit on September 20, 2018
    • def. Wanmawin Pumpanmuang on February 11, 2019
    • def. Phetsomjit Jitmuangnon on December 19, 2019
  42. January 30, 2020
    Kongchai Chanaidonmuang def. Phetsuphan Por.Daorungruang

    Kongchai vacated the title in 2020.

  43. November 4, 2020
    Fahbunmee BirdRangsit def. Saifahnoi MuadvitisChiangMai

    Fahbunmee vacated the title when he retired in 2021.

  44. March 10, 2022
    Kumandoi Petchyindee Academy def. Phetsila Wor.Uracha

    Kumandoi vacated the title in 2022.

  45. January 5, 2023
    Petchdet Wor.Sangprapai def. Phetnanuwat Nor.AnuwatGym

    Petchdet vacated the title in 2023.

  46. June 8, 2023
    Praewprao PetchPrawFah def. Petchrung Sitkrunote
    • def. Dinnuathong Muadphong191 on October 14, 2023
  47. December 23, 2023
    Nadaka Yoshinari def. Chusap Sor.Salacheep for interim title
  48. February 12, 2024
    Nadaka Yoshinari reign 2 def. Praewprao PetchPrawFah
    • def. Jomhod Kor.Suwantat on July 14, 2024
    • def. Petchnueng Petchmuaythai on December 1, 2024

    Yoshinari vacated the title in 2025.

  49. August 16, 2025
    Pangtor Por.Lakboon def. Jomhod Sitluangpeenamfon
  50. November 22, 2025
    Petchdet Wor.Sangprapai reign 2 def. Pangtor Por.Lakboon
    • def. Fourwin Sitjaroensap on January 17, 2026
    • def. Phettechin BangsaenFightClub on August 1, 2026
    • draws with Jigsaw SitThailand on October 10, 2026
  51. April 4, 2026
    Phettechin BangsaenFightClub champion def. Phusingha Or.Khamin for the interim title

Bantamweight 118 lb 75

  1. 1960s
    Anantasak Thianchai def. Pairoj Payaksophon
    • def. Payaknoi Klongpachon

    Anantasak vacated the title to challenge for the Featherweight title in 1965

  2. 1961
    LukSor Luknawikyothin
  3. October 19, 1961
    Yongyut Lukchaonuea def. LukSor.Luknawikyothin
  4. 1966
    Adulsak Itthianuchit
  5. July 26, 1967
    Denthoranee Muangsurin def. Adulsak Itthianuchit
  6. 1969
    Chalermsak Ploenjit
  7. 1970
    Theppabut Laemfahpa def. Chalermsak Ploenjit
  8. July 16, 1971
    Apisak Muangsurin def. Theppabut Laemfahpa
  9. 1973
    Klairung Lukjaomaesaitong def. Chandech Weerapon
  10. January 14, 1974
    Samersing Tianhiran def. Klairung Lukjaomaesaitong

    Samersing vacated the title in 1974.

  11. 1975
    Saksakon Sakchannarong def. Paruhat Longnoen
  12. February 8, 1975
    Jocky Sitkanpai def. Ruanpae Sitwatnang

    Jocky vacated the title on 1975.

  13. March 26, 1976
    Sagat Petchyindee def. Saksakon Sakchannarong

    Sagat vacated the title on 1976.

  14. August 5, 1976
    Raklek Chutinawee def. Phichit Sor. Kiatsak
  15. 1977
    Singnum Ekkachai
  16. February 24, 1977
    Nanfah Siharatdecho def. Raklek Chutinawee
    • def. Tawanook Sitpoonchai on September 22, 1977

    Nanfah vacated the title in 1977.

  17. January 18, 1978
    Kengkaj Kiatkriangkrai def. Singnum Ekkachai

    Kengkaj vacated the title on 1978.

  18. December 6, 1978
    Kingthong Sakornpitak def. Jomwo Sakniran

    Kinghtong was stripped of the title in 1979 after he admitted to taking a dive against Fanta Phornpitsanu in a non-title fight.

  19. March 5, 1980
    Mafuang Weerapol def. Wanlop Pichitsamut
    • def. Jomwo Sakniran on June 5, 1980
  20. April 8, 1981
    Jomwo Sakniran def. Mafuang Weerapol
    • def. Paruhat Loh-ngoen on November 23, 1981

    Jomwo was stripped of the title in 1983.

  21. October 13, 1983
    Nikhom Phetphothong def. Ruengnarong Thairungruang
  22. December 28, 1983
    Manasak Sor Ploenjit def. Nikhom Phetphothong

    Manasak was stripped of his title after losing by knockout in a non-title fight on June 29, 1984.

  23. November 21, 1984
    Nikhom Phetphothong reign 2 def. Manasak Sor.Ploenjit
  24. December 26, 1984
    Saencherng Pinsinchai def. Nikhom Phetphothong

    Saencherng vacated the title in 1985.

  25. August 5, 1985
    Jampatong Na Nontachai def. Sangtiennoi Sitsurapong
    • def. Lankrung Kiatkriankgrai on December 12, 1985
    • def. Boonam Sor.Jarunee on September 5, 1985
  26. September 25, 1986
    Panomtuanlek Hapalang def. Jampatong Na Nontachai

    Panomtuanlek vacated the title in 1986.

  27. September 23, 1987
    Ruengchai Thairungruang def. Raerung Thamachat
  28. November 26, 1987
    Boonam Sor.Jarunee def. Ruengchai Thairungruang
    • def. Chanalert Muanghatyai on February 18, 1988
  29. March 24, 1988
    Wanpichit Kaennorasing def. Boonam Sor.Jarunee
  30. September 26, 1988
    Klaisuwit Soonkelanongkhee def. Wanpichit Kaennorasing
  31. February 13, 1989
    Boonam Chor Waikul def. Klaisuwit Soonkelanongkhee
    • def. Klaisuwit Soonkelanongkhee on March 20, 1989
  32. April 27, 1989
    Chanalert Muanghatyai def. Boonam Chor.Waikul
    • def. Boonam Chor.Waikul on February 22, 1990
    • def. Rajasak Sor.Vorapin on April 25, 1990
  33. 1990s
    Bounlek Sitkuanim
  34. January 10, 1991
    Wanghin Por Chaiwatt def. Boonam Chor.Waikul
  35. March 20, 1991
    Yodkhuntap Sitkrupat def. Wanghin Por.Chaiwat

    Yodkhuntap vacated the title in 1991.

  36. May 3, 1991
    Detsuek Kiatsamran def. Taweechai Vor.Preecha
  37. 1992
    Klaisuwit Soonkelanongkhee reign 2 def. Yodkhuntap SitKrupat
  38. September 7, 1992
    Yodkhunpon Sittraiphum def. Klaisuwit Soonkelanongkhee
    • def. Namtaothong Sor.Sirikul on May 26, 1993
  39. September 16, 1993
    Jaroensak Kiatnakornchon def. Yodkhunpon Sittraiphum
  40. August 11, 1994
    Rotnarong Daopadriew def. Sukhothai Taximeter
    • def. Burklerk Pinsinchai on November 30, 1994
  41. 1995
    Sukhothai Taximeter def. Thailand Pinsinchai
  42. May 29, 1995
    Sukhothai Taximeter reign 2 def. Rotnarong Daopadriew
  43. June 21, 1995
    Thailand Pinsinchai def. Sukhothai Taximeter
  44. 1997-1998
    Newsaencherng Pinsinchai
  45. March 25, 1998
    Thong B.M.Video def. Lanna Por.Phisut
  46. 1999
    Chanrit Sit-O
  47. January 20, 1999
    Sila Tor.Bangsaen def. Thong B.M.Video
  48. 2000
    Norasing Kiatprasanchai
  49. 2002
    Lerdsila Chumpairtour def. Norasing Kiatprasanchai
    • def. Sakniran Sakthewan on August 18, 2002
  50. 2003
    Chaomailek Sor.Tantawan
  51. 2004
    Deatsak Sor.Thumpetch def. Chaomailek Sor.Tantawan
  52. September 3, 2004
    Jomthong Chuwattana def. Deatsak Sor.Thumpetch

    Jomthong vacated the title in 2005.

  53. September 3, 2005
    Kayasit Chuwattana
  54. 2006
    Dendanai P.K.Stereo
  55. 2007
    Samrandet Sor.Danchai
  56. 2008
    Tubnar Sitromsai
  57. 2009
    Kompichit Sor.Kor.Siripong
    • def. Toto SittichaiGym on June 30, 2011

    Kompichit vacated the title in 2012.

  58. April 5, 2012
    Singdam Wor.Rungniran def. Sakmongkon 96Peenang

    Singdam vacated the title in 2012.

  59. October 18, 2012
    Manasak Pinsinchai def. Phetseenin Phayaksuphan
    • def. Mutsuki Ebata on March 10, 2013

    Manasak vacated the title in 2013.

  60. September 16, 2013
    Fonphet Chuwattana def. Mutsuki Ebata
    • def. Mutsuki Ebata on March 15, 2015
  61. November 18, 2015
    Phetwason Or.Daokrajai def. Fonphet Chuwattana

    Phetwason vacated the title in 2016.

  62. November 17, 2016
    Phetbankek Sor.Sommai def. Chalongrat Sor.Ratchabut
  63. November 13, 2017
    Chalawan AttachaiMuaythai def. Phetbankek Sor.Sommai
    • def. Weerachai Teded99 on May 14, 2018.

    Chalawan vacated the title in 2018.

  64. January 23, 2019
    Saotho SitChefboontham def. Kongsak Sor.Satra
    • drew with Mutsuki Ebata on October 20, 2019

    Saotho vacated the title in 2020.

  65. February 27, 2022
    Phetmongkol Soonkelahuaytom def. Patakthep VK KhaoYai
  66. September 25, 2022
    Wanwin Lukjaoparongtom def. Phetmongkol Soonkelahuaytom

    Wanwin vacated the title in 2023.

  67. May 18, 2023
    Pangtor Por.Lakboon def. JJ Or.Pimonsri

    Pangtor was stripped of the title when he lost via decision against Khunsueklek Boomdeksian in a non-title fight on August 9, 2023..

  68. January 20, 2024
    Kumandoi PetchyindeeAcademy def. Pangtor Por.Lakboon
  69. April 6, 2024
    Khunsueklek Boomdeksian def. Kumandoi PetchyindeeAcademy
    • def. Phetsiam Jor.Pattreya on May 11, 2024
  70. July 14, 2024
    Ryuki Matsuda def. Khunsueklek Boomdeksian
  71. September 21, 2024
    Khunsueklek Boomdeksian reign 2 def. Ryuki Matsuda
    • def. Kevin Martinez on November 16, 2024
    • def. Wanchainoi Sitsarawatseur on December 21, 2024
    • def. Nuapayak Wor.Sangprapai on May 24, 2025

    Khunsueklek vacated the title on July 11, 2025.

  72. August 30, 2025
    Jaroensuk BoonlannaMuaythai def. Chalamdam Nayokathasala
    • def. Kazuki Osaki on December 27, 2025
    • def. Captainteam Adsanpatong on February 28, 2026
    • def. Puenyai Por.Lakboon on May 9, 2026
  73. December 13, 2025
    CaptainTeam Adsanpatong def. Peyman Zolfaghari for the interim title
  74. July 4, 2026
    Pangtor Por.Lakboon reign 2 def. Saotho Or.Atchariya for the interim title
  75. August 29, 2026
    Pangtor Por.Lakboon reign 3 champion def. Jaroensuk BoonlannaMuaythai

Super Bantamweight 122 lb 56

  1. 1960s
    Anantadej Sithiran (Anantakorn Sor.Lukmuangraj)
  2. ?
    Sanaengam Sor.Paedsing def. Norasing Issaraphan
  3. ?
    Rittisak Sor.For.Yor def. Sanaengam Sor.Paedsing
  4. 1965
    Phonnimit Laemfapha
  5. August 12, 1965
    Pathum Srisothon def. Ponnimit Laemfahpa
    • def. Toiting Kiatwayupak on November 25, 1965.
  6. 1968
    Norasing Issaraphan def. Rittisak Sor.For.Yor
  7. November 10, 1968
    Fahsai Taweechai def. Norasing Issaraphan
  8. May 29, 1970
    Saifah Saengmorakot def. Fahsai Taweechai
  9. 1973
    Wannarong Peeramit

    The title was vacant as of February 1, 1979.

  10. August 30, 1976
    Ruanpae Sitwatnang def. Saknarongnoi Lukbangpakong
  11. February 5, 1979
    Saiphet Sakornpitak def. Manachai Sit Amphon
  12. 1980
    Singhapathom Pongsurakan def. Dennarong Saksaendee
  13. 1980
    Jock Kiatniwat def. Singhapathom Pongsurakan

    The title was vacant as of March 1, 1982.

  14. March 15, 1982
    Khunponnoi Sitprasang def. Saphaphet Kiatphetnoi
    • def. Saphaphet Kiatphetnoi on September 16, 1982.
    • def. Ronachai Sunkilanongkhee on January 27, 1983.
    • def. Kengkajnoi Kiatniwat on June 22, 1983.
    • def. Pol Sitpordaeng on September 26, 1983.
  15. June 16, 1984
    Nokweed Davy def. Phanmongkol Hor.Mahachai

    Nokweed vacated the title in 1984.

  16. January 9, 1985
    Saphaphet Kiatphetnoi def. Narak Sitkuanyim
  17. 1987–1988
    Daengnoi Lukprabat
  18. May 31, 1987
    Manasak Sor Ploenjit def. Saphaphet Kiatphetnoi

    Manasak vacated the title in 1987.

  19. March 24, 1988
    Kongnapa Watcharawit def. Daengnoi Lukprabat

    Kongnapa vacated the title in 1988.

  20. February 22, 1989
    Chamuakpet Hapalang def. Wanpichit Kaennorasing

    Chamuekpet vacated the title in 1989

  21. 1990s
    Narat Sitkuanyim
  22. March 5, 1990
    Taweechai Wor Preechai def. Chokdee Kiatpayathai
  23. May 3, 1990
    Padejseuk Kiatsamran def. Taweechai Wor.Preecha
  24. July 9, 1990
    Rajasak Sor Worapin def. Padejseuk Kiatsamran
    • def. Nuengsiam Kiatwichian on November 11, 1990.
  25. May 15, 1991
    Phatphon Detrittha def. Rajasak Sor.Vorapin
  26. September 18, 1991
    Nuengsiam Kiatwichan def. Phatphon Detrittha
  27. 1992
    Nuengsiam Kiatwichan reign 2 def. Kanongmek Sitsai
    • def. Kukrit Sor.Nayaiam on September 7, 1992.
    • def. Mawin Lukratchawit on December 23, 1992.
    • def. Thahanek Pichitman on August 23, 1993.
  28. April 8, 1992
    Kanongmek Sitsai def. Nuengsiam Kiatwichan
  29. 1993
    Paidaeng Lesakgym def. Nuengsiam Kiatwichan
  30. March 30, 1994
    Chamuakpet Hapalang reign 2 def. Paidaeng Lesakgym
  31. April 27, 1994
    Silapathai Jockygym def. Chamuekpet Hapalang ▶ watch the title fight
    • def. Komkiat Sor.Thanikul on May 17, 1995.
  32. January 24, 1996
    Chutin Por.Tawachai def. Silapathai Jockygym
    • def. Asawin Kiatmonthep on November 12, 1997.
  33. December 1997
    Asawin Kiatmonthep def. Chutin Por.Tawachai

    Asawin vacated the title in 1998.

  34. 1999
    PhetEk Sor.Suwanpakdee
  35. February 12, 2004
    Pokaew Fonjangchonburi def. Densiam Lukprabat

    Pokaew vacated the title in 2004.

  36. June 17, 2004
    Lerdsila Chumpairtour def. Thailand Pinsinchai

    Lerdsila vacated the title in 2008.

  37. 2008
    Samrandet Sor.Srisompong
  38. 2008
    Thong Lukmakhamwan
  39. 2009
    Detpanom Chuwattana

    Detpanom vacated the title in 2010.

  40. 2010
    Sirimongkol P.K.Stereo

    Sirimongkol vacated the title in 2011.

  41. January 25, 2012
    Khaimookdam Chuwattana def. Methawin Kiatyongyut
    • def. Kunitaka Fujiwara on February 17, 2013.

    Khaimookdam vacated the title in 2013.

  42. August 22, 2013
    Surachai Srisuriyanyothin def. Panpayak Sitjajik
    • def. Rui Ebata on September 16, 2013.

    Surachai vacated the title in 2015.

  43. 2015
    Weerachai Wor.Wiwatananon
  44. September 10, 2015
    Phetnamngam Aor.Kwanmuang def. Werachai Wor.Wiwatananon
  45. March 10, 2016
    Kaotam Lukprabat def. Phetnamngam Aor.Kwanmuang
    • def. Matee Sor.Jor Vichitpidrew on December 22, 2016.
    • def. Nungpichit Keatchuchai on May 15, 2017.

    Kaotam vacated the title in 2017.

  46. June 28, 2018
    Kongthoranee Sor.Sommai def. Yodkhunsuk Mor.ChombuengRajabhat
    • def. Padetsuk Kor.Kampanat on March 14, 2019.

    Kongthoranee vacated the title in 2019.

  47. February 13, 2020
    Saoek Sitchefboontham def. Thepthaksin Sor.Sornsing

    Saoek vacated the title in 2021.

  48. February 7, 2022
    Phetsansaeb SorJor.Tongprachin def. Yod Parunchai

    Phetsansaeb vacated the title in 2022.

  49. May 28, 2023
    Chalamdam NayokAthasala def. Singdam Kafaefocus

    Chalamdam vacated the title in 2023.

  50. February 17, 2024
    Phetsiam Jor.Patreeya def. Wuttikorn Suannamtankiri

    Phetsiam was stripped of the title when he lost via knockout to Khunsueklek Boomdeksian on May 11, 2024.

  51. May 18, 2024
    Petchsamarn Sor.Samarngarment def. Parnthep V.K.Khaoyai
    • def. Petchpailin SorJor.Tongprachin on June 15, 2024.
    • def. Rittidet Lookjaoporrongtom on December 7, 2024.
    • def. Petchsila Wor.Auracha on January 25, 2025.
    • def. Yodkatanyu Jitmuangnon on April 26, 2025.
    • def. Khunsueknoi Boomdeksian on June 7, 2025.
  52. September 13, 2025
    Petchsila Wor.Auracha def. Petchsamarn Sor.Samarngarment
  53. November 9, 2025
    Khunsueknoi Boomdeksian def. Maytee Sor.Toi.Paetriew for the interim title
  54. December 27, 2025
    Khunsueknoi Boomdeksian reign 2 def. Petchsila Wor.Auracha

    Khunsueknoi vacated the title in 2026.

  55. April 18, 2026
    Petchsila Wor.Auracha reign 2 def. Petchsamarn Sor.Samarngarment
    • def. Koki Osaki on October 10, 2026.
  56. June 27, 2026
    Koki Osaki champion def. Chaitone Wor.Auracha for the interim title

Featherweight 126 lb 70

  1. 1950s
    Isarak Barbos def. Chaiyong Rajawat
  2. January 28, 1951
    Suwang Chaimiboon def. Wihokthiam Kamhaeng
  3. July 3, 1955
    Chusak Rajawat def. Suwang Chaimiboon

    Chusak was stripped of the title in 1955 after being dismissed in a non-title fight.

  4. October 3, 1955
    Saiphet Yontharakit def. Chula Lukthaksin
    • def. Pathomchai Chomsrimek
    • def. Kimhang Sitphon
    • drew Sorasak Barbos
    • def. Sorasak Barbos
    • def. Isarak Barbos in 1956.

    Saipetch was the first foreign fighter to win a major title. He vacated in 1957 due to lack of competition and started competing in boxing.

  5. 1958
    Wicharn Sor.Pinjisak def. Weerachai Lukchaonuea

    Wicharn vacated the title to move up in weight.

  6. 1959–1960
    Namsak Yontharakit def. Pongsak Lukthaksin
  7. 1961
    Dejrit Yontharakit def. Rerngsak Sor.Lukpitak

    Dejrit vacated the title to move up in weight.

  8. June 27, 1963
    Den Srisothon def. Saentanong Kesongkram
  9. July 9, 1964
    Pairoj Payaksophon def. Den Srisothorn
  10. September 30, 1965
    Anantasak Ror.For.Tor. (Thianchai) def. Suwitnoi Lukbangplasoi
    • def. Praedam Muangsurin
    • def. Chingchai Sararam

    Anantasak was stripped of the title after losing by knock out against Saenchai Therdthai in a non-title fight.

  11. 1966
    Anantasak Ror.For.Tor. (Thianchai) reign 2 def. Saenchai Therdthai
  12. 1966
    Mongkoldet Pitakchai def. Anantasak Ror.For.Tor
  13. 1967
    Weerachai Hor Mahachai def. Mongkoldet Pitakchai
  14. July 29, 1968
    Ponsawan Laemfahpa def. Weerachai Hor.Mahachai
  15. 1969
    Singhao Sor.Lukpitak def. Rungnapa Ritanuman

    Singhao was stripped of the title after being stopped by Wichannoi Porntawee in a non-title fight on April 6, 1970.

  16. August 29, 1971
    Detsakda Sorraram def. Saenrit Jennarong

    Detsakda vacated the title in 1975.

  17. June 30, 1975
    Narongnoi Kiatbundit def. Ruengsak Porntawee
  18. July 15, 1976
    Nongkhai Sor.Prapatsorn def. Narongnoi Kiatbandit
    • def. Samersing Tianhirun on June 23, 1977.
    • def. Tawanook Sitpoonchai on May 17, 1978.
    • def. Seksan Sor.Thepittak on June 21, 1978.
    • def. Seksan Sor.Thepittak on March 15, 1979.

    Nongkhai vacated the title in 1980. The title was vacant before Fanta and Singpathom's fight.

  19. March 11, 1981
    Fanta Phetmuangtrat def. Singpathom Pongsurakarn
  20. November 5, 1981
    Singpathom Pongsurakarn def. Fanta Phetmuangtrat
    • def. Lom-Isan Sor.Thanikul on July 14, 1982.
  21. January 31, 1983
    Kitti Sor.Thanikul def. Singhapathom Pongsurakan

    Kitti vacated the title in 1983.

  22. September 28, 1983
    Lom-Isan Sor.Thanikul def. Wanpadet Pukrongfah
    • draws with Kengkajnoi Kiatniwat on December 12, 1983.
    • def. Kengkajnoi Kiatniwat on January 18, 1984.
    • def. Nokweed Devy on October 8, 1984.
  23. February 2, 1985
    Nokweed Davy def. Lom-Isan Sor.Thanikul
    • def. Lom-Isan Sor.Thanikul on May 30, 1985.
  24. June 24, 1985
    Lom-Isan Sor.Thanikul reign 2 def. Nokweed Devy
  25. December 23, 1985
    Kengkajnoi Kiatniwat def. Lom-Isan Sor.Thanikul
    • def. Jongrak Lukprabaht on July 24, 1986.
  26. September 25, 1986
    Jongrak Lukprabaht def. Kengkajnoi Kiatniwat
    • draws with Saphaphet Kiatphetnoi on February 2, 1987.
    • def. Chokdee Kiatpayathai on April 29, 1987.
    • def. Ruengnoi Chomphuthong on December 23, 1987.
  27. March 24, 1988
    Poolsawat Sitsornthong def. Jongrak Lukprabaht
  28. January 15, 1989
    Kongnapa Watcharawit def. Panomtuanlek Hapalang
    • def. Jomwo Chernyim on March 20, 1989.
  29. November 13, 1989
    Jack Kiatniwat def. Kongnapa Watcharawit
    • def. Chamuekpet Hapalang on January 29, 1990.
  30. March 29, 1990
    Chamuakpet Hapalang def. Jack Kiatniwat
    • def. Jack Kiatniwat on October 31, 1990.
  31. July 20, 1991
    Rajasak Sor Worapin def. Chamuekpet Hapalang
  32. August 1991
    Taweechai Wor Preechai def. Rajasak Sor.Vorapin
  33. November 25, 1991
    Robert Kaennorasing def. Taweechai Wor.Preecha ▶ watch the title fight
    • def. Padejseuk Kiatsamran on January 29, 1992.
    • def. Rajasak Sor.Vorapin on March 25, 1992.
    • def. Jack Kiatniwat in 1992.
    • def. Buakaw Por.Pisichet on November 16, 1992.

    Robert vacated the title in 1993.

  34. August 18, 1993
    Noppadet Sor Rewadee def. Wanwiset Kaennorasing ▶ watch the title fight
  35. January 12, 1994
    Wanwiset Kaennorasing def. Noppadet Sor.Rewadee
    • def. Noppadet Sor.Rewadee on May 5, 1994.
  36. June 27, 1994
    Chaidet Kiatchansing def. Wanwiset Kaennorasing
  37. July 27, 1994
    Chamuakpet Hapalang reign 2 def. Chaidet Kiatchansing
  38. December 21, 1994
    Samingnoi Sor Thanikul def. Chamuekpet Hapalang ▶ watch the title fight
  39. February 22, 1995
    Banluedet Lukprabaht def. Samingnoi Sor.Thanikul
  40. May 24, 1995
    Phatphon Detrittha def. Banluedet Lukprabaht
  41. June 28, 1995
    Prabsuek Sittisanthat def. Phatphon Detrittha
    • def. Yuthahat Sor.Narongchai on July 31, 1996.

    Prabsuek was stripped of the title in 1997 after failing to defend it within the required period.

  42. 1997
    Rakhangkaeo Sakmueangklaeng def. Ritthichai Lookchaomaesaitong
  43. February 19, 1998
    Singbangkaeo Sitsuthapim def. Rakhangkaeo Sakmueangklaeng

    Singbangkaeo vacated the title in 1998.

  44. 1999
    Sornkhom Kiatnukul def. Apichat Pluemkamon
  45. 1999
    Muangfahlek Kiatwichian def. Sornkhom Kiatnukul
  46. 2000
    Noppakao Sor.Wanchat def. Muangfahlek Kiatwichian
    • def. Chutin Por.Tawachai on November 9, 2000.
  47. January 17, 2001
    Watcharachai Kaewsamrit def. Noppakao Sor.Wanchat
  48. July 18, 2001
    Noppakao Sor.Wanchat reign 2 def. Watcharachai Kaewsamrit
  49. August 5, 2002
    Muangfahlek Kiatwichian reign 2 def. Noppakao Sor.Wanchat
  50. February 5, 2003
    Anuwat Kaewsamrit def. Muangfahlek Kiatwichian
    • def. Muangfahlek Kiatwichian on August 6, 2003.
    • def. Nopparat Keatkhamtorn on May 6, 2005.

    Anuwat was stripped of the title when he lost by knockout in a non-title bout to Nongbee Kiatyongyut on April 6, 2006. Anuwat Kaewsamrit and Singtongnoi Por.Telakun fought to a draw for the vacant belt on September 4, 2006.

  51. November 16, 2006
    Jomthong Chuwattana def. Anuwat Kaewsamrit

    Jomthong vacated the title in 2007.

  52. 2008
    Sagetdao Petpayathai
    • def. Anuwat Kaewsamrit on April 30, 2009.

    Sagetdao vacated the title in 2009.

  53. October 1, 2009
    Jomthong Chuwattana reign 2 def. Sittisak Phetpayathai

    Jomthong vacated the title in 2010.

  54. August 9, 2010
    Kaimukkao Chuwattana def. Kongsiam Tor.Pitakchai
  55. January 31, 2011
    Kongsiam Tor.Pitakchai def. Kaimukkao Chuwattana

    Kongsiam vacated the title in 2011.

  56. June 30, 2011
    Ekkarit Mor.Krungthepthonburi def. Kaimukkao Chuwattana
  57. January 25, 2012
    Srimongkol P.K.MuaythaiGym def. Naka Kaewsamrit
  58. July 4, 2013
    Jompichit Sitchefboontham def. Srimongkol PK.Muaythaigym
  59. March 27, 2014
    Songkom Nayoksanya def. Jompichit Sitchefboontham
    • def. Kotchasan Wor.Wiwattananon on August 13, 2014.
  60. March 30, 2015
    Jompichit Sitchefboontham reign 2 def. Songkom Nayoksanya
  61. September 8, 2016
    Pettaksin Sor.Sommai def. Jompichit Sitchefboontham
    • def. Jompichit Sitchefboontham on December 21, 2017

    Pettaksin vacated the title in 2018.

  62. November 7, 2018
    Yodkritsada Yutchonburi def. Chankrit Or.Pimonsri
  63. August 1, 2019
    Phetpangan Mor.Ratanabandit def. Yodkitsada Yuthachonburi

    Phetpangan vacated the title in 2020.

  64. March 6, 2022
    Petchrungruang Or Tukdaeng def. Messi Pangkongprab

    Petchrungruang vacated the title in 2022.

  65. April 5, 2023
    Chaila Por.Lakboon def. Narak SorJor.TongPrachin
    • def. View Petchkoson on February 10, 2024
  66. April 27, 2024
    Yothin FA Group def. Chaila Por.Lakboon
    • def. Chaila Por.Lakboon on May 10, 2025
  67. December 6, 2025
    Chiebkhad Por.Pongsawang def. Ronachai Tor.Ramintra for the interim title
  68. March 28, 2026
    Chiebkhad Por.Pongsawang reign 2 def. Yothin FA Group
  69. July 18, 2026
    Narak BanglongAutoMax def. Chiebkhad Por.Pongsawang
  70. September 12, 2026
    Mungkornlek Sor.Thanapon champion def. Noelisson Silva for the interim title
    • def. Narak BanglongAutoMax on October 24, 2026

Super Featherweight 130 lb 56

  1. August 13, 1964
    Den Srisothon def. Jompop Lukbonammunfang
  2. 1965
    Den Srisothon reign 2 def. Saennapa Payaksophon
    • def. Kittichai Lukbonamanfang on May 12, 1966
    • def. Suwitnoi Lukbangplasoi on June 30, 1966
  3. February 25, 1965
    Saennapha Payaksophon def. Den Srisothon
  4. June 12, 1967
    Fahphet SingUbon def. Den Srisothon
  5. July 26, 1967
    Sakchai Luadsuphan def. Fahphet SingUbon
  6. October 1, 1967
    Den Srisothon reign 3 def. Sakchai Luadsuphan

    The title was vacant as of 1973.

  7. January 21, 1974
    Wichannoi Porntawee def. Saifah Saengmorakot
    • def. Narongnoi Kiatbandit on February 2, 1976
    • def. Posai Sitiboonlert on July 15, 1976
    • def. Narongnoi Kiatbandit on December 15, 1976
    • def. Nongkhai Sor.Prapatsorn on April 28, 1977
    • def. Narongnoi Kiatbandit on December 8, 1977
  8. June 2, 1978
    Narongnoi Kiatbundit def. Wichannoi Porntawee
    • def. Nongkhai Sor.Prapatsorn on May 9, 1979
    • def. Khaosod Sitpraprom on August 15, 1979
    • def. Prawit Sritham on September 27, 1979
  9. February 5, 1981
    Nongkhai Sor.Prapatsorn def. Narongnoi Kiatbandit
  10. September 28, 1981
    Kengkla Sitsei def. Nongkhai Sor.Prapatsorn

    Kengkla vacated the title in 1982.

  11. August 25, 1982
    Kengkaj Kiatkriangkrai def. Jock Kiatniwat

    Kengkaj vacated the title in 1983.

  12. March 17, 1983
    Samingnoom Sithiboontham def. Khaosod Sitpraprom
  13. May 12, 1983
    Khaosod Sitpraprom def. Samingnoom Sithiboontham

    Khaosod was stripped of the title on October 13, 1983, when he was dismsissed in the last round of a title defense against Kitti Sor.Thanikul.

  14. December 29, 1983
    Wanpadet Pukrongfah def. Ratchabut Sor.Thanikul
  15. September 3, 1984
    Kengkla Sitsei reign 2 def. Wanpadet Pukrongfah
    • def. Wanpadet Pukrongfah on November 15, 1984
  16. February 4, 1985
    Praedam Lukprabat def. Kengkla Sitsei
  17. August 28, 1985
    Nokweed Davy def. Praedam Lukprabat
  18. July 23, 1986
    Wanpadet Sakroumai def. Nokweed Devy

    Wanpadet vacated the title in 1987.

  19. April 29, 1987
    Kongdet Chor.Wirat def. Narak Sitkuanyim
  20. April 5, 1988
    Praedam Lukprabat reign 2 def. Komphet Chor.Suananan

    Praedam vacated the title in 1988.

  21. May 26, 1988
    Thongphet Na Nonthachai def. Kongdet Chor.Wirat
  22. September 21, 1988
    Jack Kiatniwat def. Thongphet Na Nonthachai
  23. January 15, 1989
    Sangtiennoi Sor Rungroj def. Jack Kiatniwat

    Sangtiennoi vacated the title in 1989.

  24. 1990s
    Sornram Sor Udomson def. Phetnamek Sor.Siriwat
  25. 1990s
    Phanmongkol Carryboy
  26. 1990s
    Manaschai Wachirayothin def. Khunsuk Sunwelarewadee
  27. 1990s
    Palaket Sor.Sitawee

    The title was vacant as of September 1, 2000.

  28. March 29, 1990
    Prasongphet Sor.Thammarangsi def. Manachai Na Pattaya
    • def. Chumphuang Chomphuthong on June 14, 1990
    • def. Sombat Sor.Thanikul on October 31, 1990
  29. February 4, 1991
    Kongnapa Watcharawit def. Prasongphet Sor.Thammarangsi
  30. June 10, 1991
    Jongrak Lukprabaht def. Kongnapa Watcharawit
    • def. Kongnapa Watcharawit on August 15, 1991
    • def. Saentanong Por.Chaiwat on March 23, 1992
    • def. Yodrak Wor.Kuasang on May 25, 1992
    • def. Poonsawat Kiatniwat on September 30, 1992
    • def. Yodrak Wor.Kuasang on December 2, 1992
    • def. Samaisuk Por.Pluemkamol on May 3, 1993
    • def. Samaisuk Por.Pluemkamol on June 7, 1993
  31. July 21, 1993
    Robert Kaennorasing def. Jongrak Lukprabaht
    • def. Jongrak Lukprabaht on October 6, 1993
    • def. Jongrak Lukprabaht on November 10, 1993

    Robert vacated the title in 1994.

  32. 1994
    Prabpramlek Sitsanthat
    • def. Phanmongkol Carryboy on August 29, 1994
  33. 1997
    Khunsuk Sunwelarewadee def. Thewaritnoi SKV Gym
  34. 2001
    Thewaritnoi SKVGym
    • def. Petchnamek Sor.Siriwat on August 16, 2001

    The title was vacant as of September 1, 2002.

  35. September 28, 2002
    Sagatpetch Sor.Sakulpan def. Yodthanu Petchnongnut
    • def. Khunpinit Kiattawan on February 13, 2003
    • def. Sakawthong Petchnongnut on June 23, 2003

    Sagatpetch vacated the title in 2004.

  36. 2004
    Sibmuan Laemthongkarnpaet
  37. 2005
    Orono Tawan

    Orono vacated the title in 2005.

  38. 2006
    Chanwit Sitkuanim
  39. November 30, 2006
    Kem Sor Ploenjit def. Puja Sor.Suwanee

    Kem vacated the title in 2008.

  40. 2008
    Kompayak Beamdesign
  41. March 1, 2010
    Anuwat Kaewsamrit def. Kompayak Beamdesign

    Anuwat vacated the title in 2010.

  42. October 7, 2010
    Jomthong Chuwattana def. Kongnakornban Sor.Kitrungrot
    • def. Tukkatathong Phetphayathai January 31, 2011

    Jomthong vacated the title in 2011.

  43. July 5, 2012
    Kaimukkao Por.Thairungruangkamai def. Ekkarit Mor.Krungthepthonburi

    Kaimukkao vacated the title in 2013.

  44. 2013
    Kiatphet Suhananpiekmai

    Kiatphet vacated the title in 2014.

  45. February 5, 2015
    Kwankhao Mor.Ratanabandit def. Phetmorakot Petchyindee

    Kwankhao vacated the title in 2015.

  46. May 9, 2016
    Kaimukkao Por.Thairungruangkamai reign 2 def. Kaewkangwan Prewayo

    Kaimukkao vacated the title in 2017.

  47. December 21, 2017
    PhetUtong Or.Kwanmuang def. Kaonar P.K.Saenchai

    Phet-U-Thong vacated the title in 2018.

  48. October 10, 2018
    Rungkit Wor.Sanprapai def. Rodtang Jitmuangnon

    Rungkit vacated the title in 2019.

  49. July 11, 2019
    Rangkhao Wor.Sangprapai def. Superlek Kiatmuu9
  50. January 2, 2020
    Samingdet Nor.Anuwatgym def. Thanaphet Wor.Sangprapai

    Samingdet vacated the title in 2020.

  51. December 3, 2020
    Yodtongthai Sor.Sommai def. Phetsukumvit Boybangna
  52. March 13, 2022
    Phetsukumvit Boybangna def. Yodwittaya SirilakMuaythai

    Phetsukumvit vacated the title in February 2023, in order to compete on ONE Friday Fights.

  53. April 13, 2024
    Kompatak SinbiMuayThai def. Somraknoi Muayded789
  54. June 8, 2024
    Chalam Parunchai def. Kompatak SinbiMuayThai
    • def. Thongnoi Wor.Sangprapai on January 11, 2025
    • def. Kaipa Por.WisetGym on January 31, 2026
    • def. Kiwthong TKD MuaythaiGym on April 4, 2026
  55. September 20, 2025
    Kaipa Por.WisetGym def. Comeback T.K Yuthana for the interim title
  56. July 25, 2026
    Yodkatanyu Jitmuangnon champion def. Chalam Parunchai

Lightweight 135 lb 59

  1. 1950s
    Surasak Barbos
    • def. Pansak Wttichai in 1956
  2. 1956–57
    Sompong Samanchan
  3. May 28, 1959
    Adisak Kwangmeechai def. Nimit Luatmuangtai
  4. 1960
    Adul Srisothorn def. Adisak Kwangmeechai
    • def. Sompong Jaroenmuang on May 11, 1961
  5. November 13, 1961
    Namsak Yontharakit def. Adul Srisothon

    Namsak vacated the title.

  6. December 6, 1962
    Adul Srisothorn reign 2 def. Dejrit Ithianuchit

    Adul vacated the title in 1963.

  7. February 28, 1963
    Dejrit Ithianuchit def. Adisak Kwangmeechai
    • def. Wicharn Sor.Pinjisak on September 5, 1963.

    Dejrit vacated the title to move up in weight.

  8. 1964
    Wicharn Sor.Pinjisak def. Pornsak Laemfahpa
  9. 1964
    Danchai Ploenjit def. Wicharn Sor.Pinjisak
  10. May 14, 1964
    Payap Sakalsuek def. Wicharn Sor.Pinjisak
  11. 1965–1966
    Knongmek Kashapichit def. Danchai Ploenjit
  12. 1969
    Den Srisothon def. Kanongmek Kachapichit
  13. December 16, 1969
    Denthoranee Muangsurin def. Den Srisothon

    Denthoranee awas stripped of his title for losing to Minoru Ote in Japan on November 27, 1973.

  14. 1974
    Monsawan Lukchiangmai
  15. April 20, 1974
    Jaidee Pitsanurachan def. Kwandom Parawit
  16. January 6, 1975
    Chalermpon Sor.Tha-it def. Jaidee Pitsanurachan
    • def. Monsawan Lukchiangmai on September 17, 1975

    The title was vacant as of 1977.

  17. March 18, 1978
    Toshio Fujiwara def. Monsawan Lukchiangmai
  18. June 7, 1978
    Siprae Kiatsompop def. Toshio Fujiwara

    Siprae was stripped of the title for losing by knockout to Toshio Fujiwara in Japan on October 30, 1978.

  19. September 9, 1979
    Raktae Muangsurin def. Yousop Sor.Thanikul
    • def. Seksan Sor.Theppitak on November 27, 1980
    • def. Yousop Sor.Thanikul on February 5, 1981
  20. December 8, 1982
    Inseenoi Sor.Thanikul def. Raktae Muangsurin
    • def. Padejsuk Pitsanurachan August 4, 1983
  21. June 1, 1984
    Jomtrai Petchyindee def. Inseenoi Sor.Thanikul
    • def. Komtae Chor.Suananant on January 3, 1985
  22. February 28, 1985
    Kulabkhao Na Nontachai def. Jomtrai Petchyindee
    • def. Praedam Lukprabat on May 30, 1985.
  23. 1986
    Jomtrai Petchyindee reign 2 def. Samingnoom Sithiboontham
  24. 1987
    Wanpadet Phukrongfah def. Komtae Chor.Suananan
    • def. Nokweed Devy on March 28, 1988

    Wanpadet vacated the title on 1988

  25. 1989
    Jongrak Lukprabaht def. Narak Sitkuanyim
  26. March 29, 1989
    Jongrak Lukprabaht reign 2 def. Narak Sitkuanyim
  27. June 28, 1989
    Narak Sitkuanyim def. Jongrak Lukprabaht
    • draws with Thongphet Na Nontachai on July 26, 1989
  28. 1990s
    Phanmongkol Carryboy
  29. February 22, 1990
    Narak Sitkuanyim reign 2 def. Jongrak Lukprabaht
    • draws with Thawiwut Sitkhamphan on March 29, 1990
  30. July 26, 1990
    Praedam Lukprabat def. Narak Sitkuanyim

    The title became vacant when Praedam died in a motorcycle accident on March 16, 1991.

  31. July 3, 1991
    Yasin Lukklongtan def. Komtae Chor.Suananan
  32. 1992
    Kaenthong Kiatmonthep def. Yasin Lukklongtan
    • def. Chaksing Sor.Rewadee on February 24, 1993
  33. May 25, 1994
    Komphet Lukprabat def. Samaisuk Por.Pleumkamol
  34. May 10, 1995
    Angkhandet Por.Paoin def. Komphet Lukprabat
    • def. Komphet Lukprabat on July 5, 1995
  35. June 22, 1996
    Thappaya SitOr def. Angkhandet Por.Paoin

    Tappaya vacated the title in 1998.

  36. 1998
    Thepparit Por.Tawatchai
  37. 2001
    Noppakao Sor.Wanchat
  38. 2001
    Songkom Jockygym def. Noppakao Sor.Wanchat
  39. 2003
    Mangkong Royalemarptaput
    • def. Rambojiew Dongolfservice on March 6, 2003

    Mankong vacated the title in 2004.

  40. November 23, 2005
    Jaroenchai Jor.Ratchadakorn def. Noppakao Sor.Wanchat
    • def. Hiroki Ishii on August 22, 2005

    Jaroenchai was stripped of the title after losing by knockout to Saenchai Sor.Kingstar on March 15, 2007.

  41. 2008
    Kupee Wor.Steera

    Kupee vacated the title in 2008.

  42. November 26, 2008
    Jaroenchai Kesagym def. Winailek Por.Rangsan

    Jaroenchai vacated the title in 2009.

  43. 2010
    Samsamut Kiatchongkhao def. Winailek Por.Rangsan
    • def. Winailek Por.Rangsan on October 7, 2010

    Samsamut vacated the title in 2011.

  44. August, 2011
    Nopakrit Kor.Kampanat

    Nopakrit vacated the title in 2012.

  45. May 8, 2014
    Nong-O Gaiyanghadao def. Singdam Kiatmuu9

    Nong-O vacated the title in 2014.

  46. November 18, 2015
    Yodlekpet Or. Pitisak def. Samingdet Dekfaifa
  47. October 23, 2016
    Genji Umeno def. Yodlekpet Or. Pitisak
  48. May 17, 2017
    Sakmongkol Sor.Sommai def. Genji Umeno

    Sakmongkol vacated the title in 2017.

  49. September 11, 2017
    Yodlekpet Or. Pitisak reign 2 def. Panpayak SitjatikUbon

    Yodlekpet vacated the title in 2018.

  50. November 15, 2018
    Saeksan Or.Kwanmuang def. Panpayak SitChefboontham
    • def. Kaonar P.K.Saenchai on May 29, 2019

    Saeksan was stripped for not defending the title in time.

  51. March 5, 2020
    Saeksan Or.Kwanmuang reign 2 def. Thanonchai Thanakorngym

    Saeksan vacated the title in 2021.

  52. March 20, 2022
    Kongthoranee Sor.Sommai def. Gingsanglek Tor.Laksong
  53. June 26, 2022
    Jom Parunchai def. Kongthoranee Sor.Sommai
    • def. Yota Shigemori on February 19, 2023
    • def. Alfie Pearse on October 7, 2023
  54. March 23, 2024
    Samingdet Nor.Anuwatgym def. Jom Parunchai
    • def. Thongnoi Wor.Sangprapai on May 25, 2024
    • def. Savvas Michael on July 13, 2024
    • def. Savvas Michael on November 30, 2024

    Samingdet vacated the title in 2025.

  55. March 29, 2025
    Sangmanee Sor Tienpo def. Thanupetch Wor.Sangprapai
    • def. Chalam Parunchai on May 31, 2025
    • def. Somraknoi Muayded789 on December 27, 2025
  56. October 11, 2025
    Somraknoi Muayded789 def. Duangsompong Jitmuangnon for the interim title
  57. April 11, 2026
    Egor Bikrev def. Sangmanee Sor Tienpo
  58. June 7, 2026
    Samingdet Nor.Anuwatgym reign 2 def. Flukenoi Kiatfahlikit for the interim title
    • def. Duangsompong Jitmuangnon on August 15, 2026
    • def. Kiewpayak Jitmuangnon on October 17, 2026
  59. October 10, 2026
    Kan Nakamura champion def. Egor Bikrev

Super Lightweight 140 lb 44

  1. 1968
    Pananan Lukpanjama def. Danchai Ploenjit
  2. ?
    Monsawan Laemfahpa def. Pananan Lukpanjama
  3. May 15, 1968
    Kongdej Lukbangplasoi def. Pornsak Laemfahpa
  4. 1970s
    Khwandom Sitbaramee def. Wangkaew Sityodthong

    The title was vacant as of August 5, 1981.

  5. June 11, 1973
    Sorasak Sor.Lukbukkhlo def. Buriram Suanmiskawan
  6. November 30, 1974
    Satanfah Sor.Prateep def. Sorasak Sor.Lukbukkhlo

    Satanfah vacated the title in 1975.

  7. July 28, 1975
    Chartprasert Rungrit def. Sorasak Sor.Lukbukkhlo
  8. November 28, 1975
    Phongdetnoi Prasopchai def. Chartprasert Rungrit

    Pongdejnoi vacated the title in 1978.

  9. November 15, 1981
    Somsong Kiathoranee def. Kwandom Sitbaramee
  10. June 23, 1982
    Samart Prasarnmit def. Somsong Kiathoranee

    Samart vacated the title in 1983.

  11. 1983-1984
    Rackchai Hapalang def. Nonglek Sitkrumai
  12. July 30, 1984
    Sagat Petchyindee def. Somsong Kiathoranee
    • def. Mekong Sor.Borikan on May 8, 1985
    • def. Komtae Chor.Suananant on August 30, 1985

    Sagat vacated the title in 1986.

  13. November 2, 1986
    Fadaeng Sor.Borikan def. Phet Lukbansuan
  14. 1989-1990
    Prasert Lukmatulee
  15. March 27, 1989
    Pothai Chor.Waikul def. Fadaeng Sor.Borigan
  16. 1990-1991
    Sittisak Tor.Aanusorn def. Prasert Lukmatulee
  17. December 12, 1992
    Jomhod Kiatadisak def. Sittisak Tor.Aanusorn

    Jomhod vacated the title in 1993. The title was vacant as of January 1, 1995.

  18. January 11, 1995
    Kongnapa Watcharawit def. Saenkeng Pinsinchai ▶ watch the title fight
  19. March 2, 1995
    Saenkeng Pinsinchai def. Kongnapa Watcharawit

    Saenkeng vacated the title title in 1998.

  20. June 10, 1999
    Nopdet2 Chuwatthana def. Saifa Sor.Phanuth
  21. 2000s
    Songnarong Kiatsingnoi
  22. 2004
    Klangsuan Sasiprapa
  23. 2004
    Chokdee Por.Pramuk
  24. 2005
    Bernueng Sor.Onechart
  25. 2006
    Saiyok Pumpanmuang
    • def. Berneung Sor.Onechart on March 24, 2007
  26. October 27, 2007
    Singmanee Sor.Srisompong def. Saiyoknoi Sakchainarong
    • def. Hiroki Ishii on March 9, 2008
    • def. Phetasawin Seatranferry on September 21, 2009

    Singmanee vacated the title in 2010.

  27. March 22, 2010
    Yodkhunpon Sor.Mongkolket def. Hiroki Ishii
  28. ?
    Yatkonpon F.A Group
  29. 2011
    Lom-Isan Sor.Chokichai

    Lom-Isan vacated the title in 2011.

  30. October 2, 2011
    Hiroki Ishii def. Apisak K.T.Gym
    • def. Kenfang Por.Puangchon on March 11, 2012
    • def. Plynoi Por. Paoin on September 9, 2012
  31. March 10, 2013
    Aikpikart Mor.Krungthepthonburi def. Hiroki Ishii
  32. June 11, 2014
    Petchboonchu F.A. Group def. Yodwicha Por.Boonsit

    Petchboonchu vacated the title in 2015.

  33. May 27, 2016
    PhonEk Or.Kwanmuang def. Anthony Defretin

    Phonek vacated the title in 2016.

  34. November 6, 2017
    Chamuaktong Fightermuaythai def. Yodpanomrung Jitmuangnon
    • def. Yodpanomrung Jitmuangnon on October 10, 2018
  35. August 22, 2019
    Panpayak Sitchefboontham def. Chamuaktong Fightermuaythai

    Panpayak vacated the title in 2020.

  36. November 26, 2021
    Yodlekpet Or. Pitisak def. Kulabdam Sor.Jor.Piek-U-Thai

    Yodlekpet vacated the title in 2022.

  37. December 24, 2022
    Thongsiam Kiatsongrit def. Petchmanee Sor.Jaruwan
  38. August 30, 2023
    Teeradet Chor.Hapayak def. Thongsiam Kiatsongrit

    Teeradet vacated the title in 2023.

  39. December 16, 2023
    Petchthongchai T.B.M.Gym def. Chujaroen Dabransarakarm
  40. March 2, 2024
    Dam Parunchai def. Petchthongchai Sor.Sommai
    • def. Phetphuthai Sitsarawatseua on March 15, 2025
    • def. Flukenoi Kiatfahlikit on September 6, 2025
    • def. Rangkhao Wor.Sangprapai on February 14, 2026
    • def. Chadd Collins on April 18, 2026
    • def. Capitan Petchyindee Academy on April 18, 2026
  41. November 23, 2024
    Phetphuthai Sitsarawatseua def. Moradokpetch Muayded789 for the interim title
    • def. Rungkit Bor.Rungrot on January 4, 2025
  42. June 14, 2025
    Flukenoi Kiatfahlikit def. Samingdet Nor.Anuwatgym for the interim title
  43. November 29, 2025
    Rangkhao Wor.Sangprapai def. Flukenoi Kiatfahlikit for the interim title
  44. June 20, 2026
    Jozef Molnar champion def. Petchwichai Wor.Chakrawut for the interim title

Welterweight 147 lb 54

  1. 1955
    Boonmee Maechamang def. Yodying Luksurin
  2. 1955
    Samart Sorndaeng
    • def. Chanchai Luksurin in 1955
  3. 1958
    Srisawat Thiamprasit (SitSor.Por.) def. Boonmee Rajawat
    • def. Boonmee Rajawat
    • def. Kohli Wirachai

    Srisawat was stripped of the title after being knocked out by Apidej Sit-Hirun in a non-title fight in December, 1961.

  4. 1962
    Apidej Sit-Hirun def. Sornchai Mallayuth
    • def. Sornchai Mallayut on March 21, 1963
    • def. Dejrit Itthianuchit on June 6, 1963
    • def. Sornchai Mallayut on September 9, 1963

    vacated the title in 1966.

  5. May 12, 1966
    Supachai Jaroenmuang def. Dejrit Itthianuchit
  6. January 15, 1968
    Apidej Sit-Hirun reign 2 def. Dejrit Itthianuchit
  7. November 10, 1968
    Dejrit Itthianuchit def. Apidej Sit-Hirun

    On July 5, 1972, Prabsuk Sakulthai and Chuchai Lukpanjama fought to a draw for the title. The title was vacant as of June 1, 1973.

  8. 1973
    Karavek Kwanchai def. Khunpon Sakornpitak
  9. June 6, 1973
    Buriram Suanmiskawan def. Kongdejnoi Lukbangplasoi
  10. May 8, 1974
    Khunpon Sakornpitak def. Karavek Kwanjaichonbot
  11. June 2, 1975
    Satanfah Sor.Prateep def. Khunpon Sakornpitak
    • def. Phongdetnoi Prasopchai on May 27, 1976

    Satanfah vacated the title in 1975.

  12. 1976
    Khunpon Sakornpitak reign 2
  13. November 24, 1976
    Pichit Singchuekluang def. Khunpon Sakornpitak

    The title was vacant before Mehmoud and Khunpon's fight.

  14. ?
    Mehmoud Lukbothong def. Khunpon Sakornpitak
  15. 1977
    Buriram Suanmiskawan reign 2 def. Mehmoud Lukbothong
  16. June 2, 1978
    Pongdejnoi Porntawee def. Saensuk Sor.Sangthai

    Pongdejnoi vacated the title in 1978.

  17. October 4, 1978
    Yodsing Sor.Payathai def. Buriram Suanmiskawan
  18. ?
    Kiatsiam Joker
  19. ?
    Somsak Kiatyothin def. Kiatsiam Joker

    The title was vacant in 1986.

  20. 1986
    Payap Premchai def. Lakchart Sor.Prasartporn

    The title was vacant in 1987.

  21. March 23, 1987
    Lakchart Sor Prasartporn def. Ekapon Sitsei

    Lakchart vacated the title in 1988.

  22. January 15, 1988
    Ekphon Sitsei def. Sittisak Chor.Waikul
  23. May 11, 1988
    Sittisak Chor.Waikul def. Siyok Jockygym
  24. November 22, 1990
    Payaklek Yuttakit def. Kiatdisak Nungmuengma
    • def. Ekphon Sitsei on April 8, 1991

    Title was vacant as of January 1992.

  25. June 1992
    Wicharn Chor.Rojanachai def. Ekphon Sitsei
  26. January 27, 1994
    Jomhod Kiatadisak def. Wicharn Chor.Rojanachai
  27. 1996
    Kraingkai Sor Worapin def. Denkantho Sakthawi
    • def. Rakchat Chor.Rungsak on July 1, 1996

    Kriangkrai vacated the title in 1996.

  28. March 13, 2000
    Chalamdam Sittrattrakarn def. Charanret Sit A
    • draws with Kozo Takeda on May 5, 2000
  29. January 1, 2001
    Kozo Takeda def. Chalamdam Sittrattrakarn
  30. 16 September 2001
    Chanwit KiatTor.Bor.Ubon def. Kozo Takeda

    Chanwit vacated the title in 2002.

  31. September, 2002
    Kaoklai Kaennorsing def. Charnwit KiatTor.Bor.Ubon
  32. November, 2002
    Chanwit KiatTor.Bor.Ubon reign 2 def. Kaoklai Kaennorsing
  33. 2003
    Omsin Sitkoenhin
  34. 2004
    Noppadetsorn Chuwattana def. Charnvit KiatTor.Bor.Ubon
    • def. Charnvit KiatTor.Bor.Ubon on March 20, 2005
  35. June 16, 2006
    Karuhat Aikchumpon def. Noppadetsorn Chuwattana
  36. August 20, 2006
    Noppadetsorn Chuwattana reign 2 def. Karuhat Aikchumpon

    Noppadetsorn vacated the title in 2008.

  37. 2008
    BigBen Chor.Praram6

    Bigben vacated the title in 2009.

  38. 2010
    Nampon P.K.Stereo def. Chanachai Kaewsamrit

    Nampon vacated the title in 2012.

  39. July 4, 2013
    Jos Mendonca def. Phetthongkam Oh-Sanitpan
    • def. Hideya Tanaka on September 28, 2014
    • def. Nawee EagleMuayThai on June 28, 2015

    Mendonca vacated the title in 2016.

  40. May 27, 2016
    Manaowan Sitsongpeenong def. Azize Hlali
  41. February 23, 2017
    Fabio Pinca def. Manaowan Sitsongpeenong

    Pinca vacated the title in 2017.

  42. November 30, 2017
    PhetUbon SitChefboontham def. Sakmongkol Sor.Sommai
  43. June 27, 2018
    Sakmongkol Sor.Sommai def. PhetUbon SitChefboontham

    Sakmongkol vacated the title in 2019.

  44. March 14, 2019
    Tuanpae Sor.Sommai def. Phetnarin Kluarae1T

    Tuanpae vacated the title in 2019.

  45. January 5, 2020
    Jomthong Chuwattana def. Phetnarin Kluarae1T

    Jomthong vacated the title in 2020.

  46. December 17, 2020
    Rambo JPowerRoofSamui def. Saenpon Phetpachara

    Rambo vacated the title in 2021.

  47. March 21, 2022
    Shadow Singmawin def. Julio Lobo

    Shadow vacated the title in 2023

  48. April 15, 2023
    Sajad Sattari def. Yodkhunpon MoothongAcademy

    Sattari vacated the title in September 2023 to compete on ONE Friday Fights.

  49. November 4, 2023
    Erdem Dincer def. Ruben La Pira
  50. December 2, 2023
    Hercules Wor.Jakrawut def. Erdem Dincer
    • def. Erdem Dincer on January 27, 2024
  51. May 4, 2024
    Tapaokaew Singmawin def. Hercules Wor.Jakrawut
    • def. Nuenglanlek Jitmuangnon on August 9, 2025
    • def. Alexis Laugeois on November 15, 2025
    • def. Saenpon Sor.Sommai on March 7, 2026
  52. October 12, 2024
    Nuenglanlek Jitmuangnon def. Capitan Petchyindee for the interim title
    • def. Chujaroen Dabransarakarm on February 8, 2025
  53. July 11, 2026
    Niall McGreevy def. Tapaokaew Singmawin
  54. October 10, 2026
    Kirill Khomutov champion def. Award Kazimba for the interim title

Super Welterweight 154 lb 22

  1. December 3, 2000
    Hitoshi Ogasawara
  2. January 28, 2001
    Chaowalit Jockygym
  3. December 9, 2001
    Sagetdao Kiatputon

    Sagetdao vacated the title in 2002.

  4. December 13, 2002
    Kaoklai Kaennorasing
  5. 2003
    Yokkao Bor.Chor.Ror.2
  6. 2003
    Changpuek Chor.Sriprasert
  7. 2006
    BigBen Chor.Praram6
  8. 2008
    Diesellek Rungruangyon
  9. 2009
    Omsinlek Sitjekan
  10. 2010
    Chanajon P.K. Saenchai
  11. 2011
    Chanachai Kaewsamrit
  12. 2011
    Kanongsuk Chuwattana
  13. 2013
    Kongjak Por.Paoindef.
  14. November 23, 2014
    Aonang KiatPepedef. Shinya Ishige
  15. 2015
    Nawee EagleMuayThaidef.
  16. June 1, 2016
    Takuya "T-98" Imamuradef. Nawee EagleMuayThai
  17. May 25, 2017
    Sibmuen S.chefboontham
  18. February 19, 2018
    Sibmuen S.chefboontham reign 2

    Inthachai vacated the title in 2018.

  19. June 27, 2018
    Sibmuen S.chefboontham reign 3

    Sibmuen was stripped of the title when he lost by knockout in a non-title bout against Hinata on February 17, 2019.

  20. Apr 28, 2019
    Khunsuk Sitchefboontham

    Khunsuk vacated the title in 2020. The title was retired in 2021 due to the COVID-19 pandemic.

  21. Jun 1, 2022
    Daniel Rodriguez
  22. Mar 30, 2024
    Yodwicha Por Boonsit champion

Middleweight 160 lb 30

  1. 1953
    Prayut Udomsak def. Wittichai Prayut
  2. August 2, 1953
    Sakchai Nakpayak def. Somsri Thiamkamhaeng
  3. 1954
    Sema Klasuek def. Prayut Udomsak
  4. 1954
    Daothong Singpanlop def. Sema Klasuek
    • def. Mekdam Lukjaofah
  5. 1954–1955
    Suchai Kesongkram def. Daothong Singpanlop
  6. 1955–1956
    Sema Klasuek reign 2 def. Suchai Kesongkram
  7. April 30, 1964
    Daoprakai Sor.Pinijsak def. Srisawat Sit Sor.Por

    Daoprakai was stripped of the title after being stopped by Apidej Sit-Hirun in a non-title fight on September 8, 1964.

  8. 1965
    Sornchai Mallayut
  9. June 4, 1965
    Bukdiew Yontharakit def. Sornchai Mullayut

    Bukdiew was stripped of the title in 1966 following his arrest on charges of rape.

  10. 1966
    Dejthai Ithichai
  11. 1966
    Rawee Dechachai def. Dejthai Ithichai
  12. 1968
    Arjun Hor.Mahachai
    • def. Sukkasem Saifah on November 10, 1968
  13. 1969
    Yodthong Sahaisuk def. Arjun Hor.Mahachai
    • def. Dejthai Ithichai on December 16, 1969

    The title was vacant as of 1977.

  14. 1977–1978
    David Amornrat
    • def. Tabata on June 7, 1978
  15. 1980
    Weerasak Payonkanchang def. David Amornrat

    Weerasak was the last Middleweight champion before the title was discontinued due to the lack of competition in the division.

  16. January 9, 2003
    DuanIsaan Kiatsarika def. Nuengtrakan Por.MuangUbon

    DuanIsaan vacated the title in 2003.

  17. December 23, 2004
    Lamsongkram Chuwattana def. Hayato
    • def. Toshio Matsumoto on March 12, 2005
    • def. Kaoklai Kaennorsing on February 9, 2006
  18. March 29, 2007
    Nontachai Sit-O def. Lamsongkram Chuwattana

    Nontachai vacated the title in 2008.

  19. February 29, 2012
    Lamsongkram Chuwattana reign 2 def. Tobias Alexandersson

    Lamsongkram vacated the title in 2013.

  20. 2013
    Kanongsuk Chuwattana

    The title was vacant as of 2014.

  21. 2015
    Kompetlek Lukprabat
    • no contest against Youssef Boughanem on May 27, 2016
  22. March 26, 2015
    Kanongsuk Chuwattana reign 2 def. Chanachai Sitsukato

    Kanongsuk vacated the title in 2015.

  23. August 31, 2016
    Youssef Boughanem def. Kompetlek Lukprabat

    Boughanem vacated the title in 2018.

  24. February 18, 2019
    Denkaosaen Tor.Peerapat def. PhetUbon SitChefboontham

    Denkaosaen vacated the title in 2019.

  25. November 28, 2019
    Shinya Ishige def. Siangchai PLSGym

    Ishige vacated the title in 2021.

  26. September 23, 2023
    Emerson Bento def. Beckham BigWinChampion

    Bento was stripped of the title when he lost by knockout in a non-title fight against Thoeun Theara on November 23, 2023.

  27. December 16, 2023
    Joe Ryan def. Phetmai SiadamMoopraraRajadamnern
    • def. Victor Hugo on April 20, 2024
  28. November 16, 2024
    Petchmorakot Bangmadklongtan def. Joe Ryan
    • def. Josh Hill on February 1, 2025
    • def. Nayanesh Ayman on April 12, 2025
    • def. Kongjak Por.Paoin on July 19, 2025
    • def. Salimkhan Ibragimov on April 25, 2026
  29. October 25, 2025
    Thananchai Sitsongpeenong def. Elad Suman for the interim title
  30. September 26, 2026
    Daniel Rodriguez champion def. Petchmorakot Bangmadklongtan

Sources: mostly Wikipedia's "Rajadamnern" page; each entry's source is on its edit page.