/
| Champion | Won | Lost | Days |
|---|---|---|---|
| Oscar Collazo | 16 Nov 2024 | Current | 704 |
| Knockout CP Freshmart | 29 Jun 2016 | 1 Mar 2020 | 1,341 |
| Hekkie Budler | 1 Mar 2014 | 19 Mar 2016 | 749 |
| Ryo Miyazaki | 31 Dec 2012 | 27 Dec 2013 | 361 |
| Akira Yaegashi | 24 Oct 2011 | 24 Jun 2012 | 244 |
| Kwanthai Sithmorseng | 5 Nov 2010 | 19 Apr 2011 | 165 |
| Román González | 15 Sept 2008 | 8 Oct 2010 | 753 |
| Noel Arambulet | 3 Jul 2004 | 15 Sept 2008 | 1,535 |
| Noel Arambulet | 29 Jul 2002 | 2 Jul 2004 | 704 |
| Keitaro Hoshino | 6 Dec 2000 | 16 Apr 2001 | 131 |
| Noel Arambulet | 9 Oct 1999 | 19 Aug 2000 | 315 |
| Rosendo Álvarez | 2 Dec 1995 | 12 Nov 1998 | 1,076 |
| Chana Porpaoin | 10 Feb 1993 | 2 Dec 1995 | 1,025 |
| Hideyuki Ohashi | 14 Oct 1992 | 10 Feb 1993 | 119 |
| Choi Hi-yong | 2 Feb 1991 | 14 Oct 1992 | 620 |
| Bong Jun Kim | 16 Apr 1989 | 2 Feb 1991 | 657 |
| Leo Gamez | 10 Jan 1988 | 1 Apr 1989 | 447 |
Built from title bouts on record. Vacated or stripped titles are not visible in bout results, so very recent changes can lag.