Champions
| Champion | Won | Lost | Days |
|---|---|---|---|
| Gary Mack | 13 Oct 2019 | Current | 2,566 |
| Petpanomrung Kiatmuu9 | 15 Jun 2019 | 13 Oct 2019 | 120 |
| Meison Hide Usami | 18 May 2018 | 15 Jun 2019 | 393 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.