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.
World Boxing Council
MuayThai
World Mini Flyweight Title [47.627kg/105lb] (as of 2025-09-05)
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Nungkongjiam Kiatsombat
2011-07-14
Bangkok, THA
Defeats Jompet Chuwattana; vacant sometime between 13-01 and 13-04.
Nichaoew Suwitgym
2013-01-05
Ko Chang, THA
Defeats Raktemroi Visutchatoenyont; vacant sometime between 13-11 and 14-01.
Nadaka EiwaSportsGym (Yoshinari Nadaka)
2018-04-08
Tōkyō, JPN
Defeats Tuantong Singmanee for the vacant title; also wins IBF World Title on 18-09-26 and Rajadamnern Title on 18-12-09; WBC title is vacant in 19-04.
Petchdet Wor Sungprapai
2019-06-01
Tōkyō, JPN
Defeats Ryūya EiwaSports (Okuwaki Ryūya); vacant in 21-12.
