Boxing Champions
| Division | Champion | Date | Dec. | Prev. Champ |
| Heavyweight | Wladimir Klitschko | Apr. 22, 2006 | TKO 7 | Chris Byrd* |
| Cruiserweight | David Haye | Nov. 10, 2007 | TKO 7 | Jean-Marc Mormeck |
| Light heavyweight | Zsolt Erdei | Jan. 17, 2004 | UD 12 | Julio Gonzalez |
| Super middleweight | Joe Calzaghe | Mar. 4, 2006 | UD 12 | Jeff Lacy* |
| Middleweight | Kelly Pavlik | Mar. 29, 2007 | TKO 7 | Jermain Taylor |
| Junior middleweight | Verno Phillips | Mar. 27, 2008 | SD 12 | Cory Spinks |
| Welterweight | Antonio Margarito | July 26, 2008 | TKO 10 | Miguel Cotto* |
| Junior welterweight | Ricky Hatton | June 4, 2005 | TKO 11 | Kostya Tsyzu |
| Lightweight | Nate Campbell | Mar. 8, 2008 | SD 12 | Juan Diaz* |
| Junior lightweight | Manny Pacquiao | Jan. 21, 2006 | TKO 10 | Erik Morales |
| Featherweight | Chris John | Mar. 4, 2006 | UD 12 | Juan Manuel Marquez |
| Junior featherweight | Israel Vazquez | Aug. 4, 2007 | TKO 6 | Rafael Marquez |
| Bantamweight | VACANT | |||
| Junior bantamweight | VACANT | |||
| Flyweight | Daisuke Naito | July 18, 2007 | UD 12 | Pongsaklek Wonjongkam |
| Junior flyweight | Ivan Calderon | Aug. 25, 2007 | SD 12 | Hugo Fidel Cazares* |
| Strawweight | Raul Garcia | June 14, 2008 | SD 12 | Florante Condes |
* – vacant title
Upcoming Title Fights
- Aug. 31: Ivan Calderon (c) vs. Hugo Fidel Cazares, junior flyweight
- Sept. 13: Nate Campbell (c) vs. Joan Guzman, lightweight
- Nov. 22: Ricky Hatton (c) vs. Paulie Malignaggi, junior welterweight