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| Champion | Won | Lost | Days |
|---|---|---|---|
| Kento Haraguchi | 29 Apr 2026 | Current | 174 |
| Phetjee Jaa Or.Meekun | 9 Mar 2024 | 9 Mar 2024 | 0 |
| Allycia Rodrigues | 9 Mar 2024 | 29 Apr 2026 | 781 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.