/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Daniel Dubois | 9 May 2026 | Current | 164 |
| Fabio Wardley | 17 Nov 2025 | 9 May 2026 | 173 |
| Oleksandr Usyk | 25 Sept 2021 | 17 Nov 2025 | 1,514 |
| Anthony Joshua | 7 Dec 2019 | 25 Sept 2021 | 658 |
| Anthony Joshua | 31 Mar 2018 | 1 Jun 2019 | 427 |
| Joseph Parker | 10 Dec 2016 | 31 Mar 2018 | 476 |
| Tyson Fury | 28 Nov 2015 | 12 Oct 2016 | 319 |
| Wladimir Klitschko | 23 Feb 2008 | 28 Nov 2015 | 2,835 |
| Sultan Ibragimov | 2 Jun 2007 | 23 Feb 2008 | 266 |
| Shannon Briggs | 4 Nov 2006 | 2 Jun 2007 | 210 |
| Lamon Brewster | 10 Apr 2004 | 1 Apr 2006 | 721 |
| Wladimir Klitschko | 14 Oct 2000 | 8 Mar 2003 | 875 |
| Vitali Klitschko | 26 Jun 1999 | 1 Apr 2000 | 280 |
| Herbie Hide | 28 Jun 1997 | 26 Jun 1999 | 728 |
| Henry Akinwande | 29 Jun 1996 | 29 Jan 1997 | 214 |
| Riddick Bowe | 11 Mar 1995 | 5 May 1996 | 421 |
| Herbie Hide | 19 Mar 1994 | 11 Mar 1995 | 357 |
| Michael Bentt | 29 Oct 1993 | 19 Mar 1994 | 141 |
| Michael Moorer | 15 May 1992 | 8 Feb 1993 | 269 |
| Francesco Damiani | 6 May 1989 | 11 Jan 1991 | 615 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
