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| Champion | Won | Lost | Days |
|---|---|---|---|
| Sean Strickland | 9 May 2026 | Current | 164 |
| Khamzat Chimaev | 16 Aug 2025 | 9 May 2026 | 266 |
| Dricus du Plessis | 20 Jan 2024 | 16 Aug 2025 | 574 |
| Sean Strickland | 10 Sept 2023 | 20 Jan 2024 | 132 |
| Israel Adesanya | 8 Apr 2023 | 10 Sept 2023 | 155 |
| Alex Pereira | 12 Nov 2022 | 8 Apr 2023 | 147 |
| Israel Adesanya | 6 Oct 2019 | 12 Nov 2022 | 1,133 |
| Robert Whittaker | 9 Jun 2018 | 9 Jun 2018 | 0 |
| Georges St-Pierre | 4 Nov 2017 | 9 Jun 2018 | 217 |
| Michael Bisping | 4 Jun 2016 | 8 Oct 2016 | 126 |
| Luke Rockhold | 12 Dec 2015 | 4 Jun 2016 | 175 |
| Chris Weidman | 6 Jul 2013 | 12 Dec 2015 | 889 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
