/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Jaime Munguia | 2 May 2026 | Current | 172 |
| Terence Crawford | 13 Sept 2025 | 1 Jan 2026 | 110 |
| Canelo Álvarez | 19 Dec 2020 | 13 Sept 2025 | 1,729 |
| Callum Smith | 28 Sept 2018 | 19 Dec 2020 | 813 |
| George Groves | 27 May 2017 | 28 Sept 2018 | 489 |
| Tyron Zeuge | 5 Nov 2016 | 27 May 2017 | 203 |
| Fedor Chudinov | 12 Nov 2015 | 4 Jan 2016 | 53 |
| Andre Ward | 21 Nov 2009 | 12 Nov 2015 | 2,182 |
| Mikkel Kessler | 3 Oct 2008 | 21 Oct 2009 | 383 |
| Joe Calzaghe | 4 Nov 2007 | 26 Sept 2008 | 327 |
| Mikkel Kessler | 12 Nov 2004 | 14 Oct 2006 | 701 |
| Sven Ottke | 15 Mar 2003 | 27 Mar 2004 | 378 |
| Byron Mitchell | 12 Jun 1999 | 8 Apr 2000 | 301 |
| Frankie Liles | 12 Aug 1994 | 12 Jun 1999 | 1,765 |
| Michael Nunn | 12 Sept 1992 | 26 Feb 1994 | 532 |
| Víctor Córdoba | 5 Apr 1991 | 12 Sept 1992 | 526 |
| Christophe Tiozzo | 30 Mar 1990 | 5 Apr 1991 | 371 |
| Baek In-chul | 28 May 1989 | 30 Mar 1990 | 306 |
| Fulgencio Obelmejias | 23 May 1988 | 28 May 1989 | 370 |
| Park Chong-pal | 6 Dec 1987 | 23 May 1988 | 169 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
