/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Dmitry Bivol | 22 Feb 2025 | Current | 606 |
| Artur Beterbiev | 11 Nov 2017 | 22 Feb 2025 | 2,660 |
| Andre Ward | 19 Nov 2016 | 21 Sept 2017 | 306 |
| Sergey Kovalev | 8 Nov 2014 | 19 Nov 2016 | 742 |
| Bernard Hopkins | 9 Mar 2013 | 8 Nov 2014 | 609 |
| Tavoris Cloud | 28 Aug 2009 | 9 Mar 2013 | 1,289 |
| Chad Dawson | 11 Oct 2008 | 27 May 2009 | 228 |
| Clinton Woods | 4 Mar 2005 | 12 Apr 2008 | 1,135 |
| Roy Jones Jr. | 5 Jun 1999 | 19 Nov 2002 | 1,263 |
| Reggie Johnson | 6 Feb 1998 | 5 Jun 1999 | 484 |
| William Guthrie | 19 Jul 1997 | 6 Feb 1998 | 202 |
| Virgil Hill | 23 Nov 1996 | 13 Jun 1997 | 202 |
| Henry Maske | 20 Mar 1993 | 23 Nov 1996 | 1,344 |
| Charles Williams | 29 Oct 1987 | 20 Mar 1993 | 1,969 |
| Bobby Czyz | 6 Sept 1986 | 29 Oct 1987 | 418 |
| Slobodan Kačar | 21 Dec 1985 | 6 Sept 1986 | 259 |
| Michael Spinks | 25 Feb 1984 | 5 Nov 1985 | 619 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.
