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| Champion | Won | Lost | Days |
|---|---|---|---|
| Nathan Cook | 17 Oct 2026 | Current | 3 |
| Jonathan Haggerty | 20 Feb 2025 | 20 Feb 2025 | 0 |
| Fabrício Andrade | 24 Jan 2025 | 20 Feb 2025 | 27 |
| Superlek Kiatmuu9 | 6 Sept 2024 | 24 Jan 2025 | 140 |
| Petchtanong Banchamek | 19 Nov 2022 | 19 Nov 2022 | 0 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.