/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Petr Yan | 6 Dec 2025 | Current | 318 |
| Merab Dvalishvili | 14 Sept 2024 | 6 Dec 2025 | 448 |
| Sean O'Malley | 19 Aug 2023 | 14 Sept 2024 | 392 |
| Aljamain Sterling | 6 Mar 2021 | 19 Aug 2023 | 896 |
| Henry Cejudo | 9 May 2020 | 6 Mar 2021 | 301 |
| T.J. Dillashaw | 4 Nov 2017 | 19 Jan 2019 | 441 |
| Cody Garbrandt | 30 Dec 2016 | 4 Nov 2017 | 309 |
| Dominick Cruz | 17 Jan 2016 | 30 Dec 2016 | 348 |
| T.J. Dillashaw | 24 May 2014 | 17 Jan 2016 | 603 |
| Renan Barão | 1 Feb 2014 | 24 May 2014 | 112 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
