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| Champion | Won | Lost | Days |
|---|---|---|---|
| Justin Gaethje | 14 Jun 2026 | Current | 128 |
| Charles Oliveira Da Silva | 7 Mar 2026 | 14 Jun 2026 | 99 |
| Max Holloway | 19 Jul 2025 | 7 Mar 2026 | 231 |
| Islam Makhachev | 1 Jun 2024 | 19 Jul 2025 | 413 |
| Max Holloway | 13 Apr 2024 | 1 Jun 2024 | 49 |
| Islam Makhachev | 12 Feb 2023 | 13 Apr 2024 | 426 |
| Charles Oliveira Da Silva | 11 Dec 2021 | 12 Feb 2023 | 428 |
| Khabib Nurmagomedov | 6 Oct 2018 | 24 Oct 2020 | 749 |
| Conor McGregor | 12 Nov 2016 | 12 Nov 2016 | 0 |
| Eddie Alvarez | 7 Jul 2016 | 12 Nov 2016 | 128 |
| Rafael dos Anjos | 14 Mar 2015 | 7 Jul 2016 | 481 |
| Anthony Pettis | 31 Aug 2013 | 14 Mar 2015 | 560 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
