In the four-belt era a boxer is undisputed when he or she holds the WBA, WBC, IBF and WBO titles at the same time.
Why it’s rare
Each body has its own rankings and mandatory challengers, and the best fighters are often tied to different promoters and broadcasters. Bringing all four belts together means satisfying every body and getting rival business partners to agree.
Three-division undisputed champions
Only two men are recognized as undisputed in three weight classes: Henry Armstrong and Terence Crawford. Crawford retired in December 2025.
How undisputed status ends
Undisputed status ends when a champion loses, retires, moves divisions or vacates one of the belts. Heavyweight is the most recent example: Oleksandr Usyk vacated the WBO belt in November 2025 and the WBA, WBC and IBF belts on June 26, 2026.
Undisputed vs. unified
A unified champion holds two or three of the four belts. Only all four make a champion undisputed.
Recent undisputed champions
| Fighter | Division | Became undisputed |
|---|---|---|
| Oleksandr Usyk | Heavyweight | 2024 (and again 2025) |
| Terence Crawford | Super middleweight | Sep 13, 2025 |
| Dmitry Bivol | Light heavyweight | Feb 22, 2025 |
| Naoya Inoue | Super bantamweight | 2023 |
Most undisputed reigns end within a year or two because champions vacate rather than face four sets of mandatory challengers. Our undisputed championship tracker lists the latest undisputed fights and who holds each heavyweight belt.
FAQ
What is the difference between unified and undisputed?
Unified means holding more than one major belt; undisputed means holding all four (WBA, WBC, IBF, WBO) at once.
Who has been undisputed in three weight classes?
Henry Armstrong and Terence Crawford.