Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
Rajadamnern Stadium
Light Middleweight Title [69.8kg/154lb] (as of 2025-07-26)
Because it is difficult to find comprehensive muay thai results in English, these lists are always "under construction." Also, Thai competitors change their names when they switch their gym affiliations, and the names on this list may not be always accurate. If you have corrections or additional information, please send in (with specifying the source, of course).
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Hern Silatong
1980s?
Ogasawara Hitoshi
2000-12-03
Bangkok
Defeats Denskee Hamachaiwira.
Chaowalit Jockygym
2001-01-28
Tōkyō, JPN
Sagetdao Kiatputon
2001-12-09
Bangkok
Still champion as of 02-05-26; vacant in 02.
Kaoklai Kaennorasing
2002-12-13
Bangkok
Defeats Chalermsak Chuwattana
Yokkao Bor.Chor.Ror.2
2003
Bangkok
Still champion as of 06-03.
BigBen Chor.Praram6
2006
Still champion as of 07-11.
Diesellek Rungruangyon
2008
Still champion as of 09-02.
[...]
Omsinlek Sitjekan
2009-12<
Still champion as of 10-08.
[...]
Chanajon P.K.SaenchaiMuaythaiGym
2010
Defeats Jaochalam Sor Pinyou; vacant in 10.
Chanachai Kaewsamrit
2010-11-29
Bangkok
Defeats Mickaël Piscitello for the vacant title; still champion as of 11-06.
[...]
Kanongsuek Chuwatana
2012-01<
Still champion as of 13-03-25.
[...]
Gongjak Por.Paoin
2013-05<
Vacant in 14-04 or 14-05.
Gongjak Por.Paoin [2]
2014-06<
[...]
Aonang KiatPepe
2014-11-23
Bangkok
Defeats Ishige Shin-ya for the vacant title; still champion as of 15-09-20 and 16-02.
Navi Eagle Muay Thai
2016-04<
T-98 (Imamura Takuya)
2016-06-01
Tōkyō, JPN
Sibmean Sitchefboonthum
2017-05-25
Bangkok
Inthachai Chor.Hapayak
2018-02-12
Bangkok
Vacant in 18.
Sibmean Sitchefboonthum [2]
2018-06-27
Bangkok
Defeats Tsukuru FujimotoGym (Midorikawa Tsukuru); stripped of the title after losing a non-title match on 19-02-17.
Kunsuk Sitchefboonthum
2019-04-28
Bangkok
Defeats Filipe Family Muaythai; still champion as of 19-12-13; may vacate the title in 20; title inactive in 21 due to the COVID-19 pandemic.
