Who Is the Heavyweight Boxing Champion in 2025?

By Sarah Miller · June 29, 2052

As of October 2025, the undisputed heavyweight boxing champion is Oleksandr Usyk, who holds all four major world titles: WBA (Super), WBC, IBF, and WBO. The Ukrainian southpaw defeated Tyson Fury in May 2024 to unify the division, becoming the first cruiserweight-turned-heavyweight to achieve undisputed status.

Understanding the Undisputed Heavyweight Champion

Oleksandr Usyk's victory over Tyson Fury marked a historic moment in modern boxing. By winning the WBC title from Fury, Usyk completed the unification of all four major belts, making him the first undisputed heavyweight champion since Lennox Lewis in 2000. This achievement solidifies his place among the sport’s elite.

Key Titles Held by Usyk

WBA (Super) Heavyweight Title
WBC Heavyweight Title
IBF Heavyweight Title
WBO Heavyweight Title

Usyk’s technical mastery, ring intelligence, and relentless work rate have defined his dominance. Trained by Andrew Howard and known for his exceptional footwork and jab, he has transitioned seamlessly from two-time cruiserweight champion to heavyweight kingpin.

Path to Undisputed Glory

Usyk’s journey to unifying the heavyweight division was methodical and impressive:

Defeated Anthony Joshua twice (2021 and 2022) to claim WBA, IBF, and WBO titles
Won the vacant WBC title by defeating Tyson Fury via split decision in May 2024
Became first male boxer in history to hold all four major belts simultaneously in the heavyweight division

Historical Context of Undisputed Champions

Prior to Usyk, the heavyweight division had been fragmented for over two decades. Fighters like Mike Tyson, Evander Holyfield, and Lennox Lewis held versions of the title, but no one unified them completely until now. Usyk’s accomplishment bridges generations and revives global interest in the prestige of the heavyweight crown.

Current Heavyweight Landscape

With Usyk as undisputed champion, the division faces pivotal questions about future matchups and mandatory challengers. Promotional politics and sanctioning body mandates will shape upcoming fights.

Top Contenders for Next Challenge

Derek Chisora – veteran with high-profile wins
Joe Joyce – powerful puncher, former title challenger
Agit Kabayel – rising European contender
Frank Sanchez – undefeated prospect with strong fundamentals

Organization	Champion	Reign Start	Next Mandatory Challenger
WBA (Super)	Oleksandr Usyk	August 2021	Derek Chisora
WBC	Oleksandr Usyk	May 2024	Deontay Wilder
IBF	Oleksandr Usyk	August 2021	Daniel Dubois
WBO	Oleksandr Usyk	August 2021	Joseph Parker

Table data source:1, 2, 3, 4

The table confirms that Usyk currently holds all four major titles, though each organization lists different mandatory challengers. This creates potential for multiple high-stakes bouts in 2025–2026, especially if Usyk agrees to defend against top-ranked contenders across different belts.

Future Fight Scenarios

Several compelling matchups loom on the horizon:

Usyk vs. Wilder: Explosive power versus technical brilliance—long anticipated showdown
Usyk vs. Dubois: IBF-mandated bout featuring aggressive British contender
Unification rematch with Anthony Joshua: Massive global appeal and financial incentive
vs. Francis Ngannou: Crossover superfight drawing interest from combat sports fans worldwide

Frequently Asked Questions About the Heavyweight Boxing Champion

Who is the current undisputed heavyweight boxing champion?

Oleksandr Usyk is the current undisputed heavyweight boxing champion, holding the WBA (Super), WBC, IBF, and WBO titles after defeating Tyson Fury in May 2024.

Has any boxer been undisputed heavyweight champion before?

Yes, Lennox Lewis was the last undisputed champion in 2000. Before him, Riddick Bowe briefly held all recognized titles in 1992. Usyk is the first to unify all four modern belts simultaneously.

How did Oleksandr Usyk become undisputed champion?

Usyk won the WBA, IBF, and WBO titles by defeating Anthony Joshua in 2021 and 2022. He then added the WBC title by beating Tyson Fury in May 2024, completing unification.

Is Tyson Fury still a world champion?

No, Tyson Fury lost his WBC title to Oleksandr Usyk in May 2024. As of October 2025, he remains inactive and has not announced plans for a rematch or return fight.

What makes Usyk’s achievement unique?

Usyk is the only boxer in history to win undisputed titles in both the cruiserweight and heavyweight divisions. His combination of amateur pedigree, professional success, and technical skill sets a new benchmark in the sport.