Heavyweight - Cruiserweight - Light heavyweight - Super middleweight - Middleweight - Junior middleweight - Welterweight - Junior welterweight - Lightweight - Junior lightweight - Featherweight - Junior featherweight - Bantamweight - Junior bantamweight - Flyweight - Junior flyweight - StrawweightHEAVYWEIGHT (UNLIMITED)1. Chris Billam-Smith Previous ranking: 3Record: 21-2, 13 KOsLast: W (UD12) Brandon Glanton, April 26, 2025Next: TBA4. Noel Mikaelian Previous ranking: 4Record: 28-3, 12 KOsLast: W (UD12) Badou Jack, Dec. 13, 2025Next: TBA5. Badou Jack Previous ranking: 5Record: 29-4-3, 17 KOsLast: L (UD12) Noel Mikaelian, Dec. 13, 2025Next: TBA6. Andy Hiraoka Previous ranking: 10Record: 24-1, 19 KOsLast: L (UD12) Gary Antuanne Russell, Feb. 21Next: TBALIGHTWEIGHT (UP TO 135 POUNDS)1.