/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Karim Mabrouk | 14 Feb 2026 | Current | 249 |
| Smilla Sundell | 30 Sept 2023 | 4 May 2024 | 217 |
| Xiong Jingnan | 14 Jan 2022 | 30 Sept 2023 | 624 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.