Who Is the Boxing Heavyweight Champion in 2025?

By Sarah Miller · June 30, 2035

The current unified heavyweight boxing champion is Oleksandr Usyk, who holds the WBA (Super), WBC, IBF, and WBO titles after defeating Tyson Fury in May 2024. This victory solidified his status as the first undisputed heavyweight champion of the four-belt era.

Who Is the Current Heavyweight Boxing Champion?

Oleksandr Usyk is the reigning unified heavyweight boxing champion as of October 2025. The Ukrainian fighter made history by defeating Tyson Fury via split decision on May 18, 2024, in Riyadh, Saudi Arabia, to claim the WBC title and unify all four major world championships: WBA (Super), WBC, IBF, and WBO. With this win, Usyk became the first man in boxing history to be recognized as the undisputed heavyweight champion under the four-belt system.

Key Achievements

Became first four-belt undisputed heavyweight champion
Defeated Tyson Fury in a historic unification bout
Previously held undisputed cruiserweight title
Maintains an undefeated professional record

Path to Undisputed Glory

Usyk's journey to becoming the undisputed heavyweight champion began with his dominant reign at cruiserweight, where he unified all major titles and vacated them to move up in weight. His transition to heavyweight saw early wins over Derek Chisora and Anthony Joshua—twice—setting the stage for the mega-fight against Fury.

The Unification Series

The long-awaited unification series between Usyk and Fury was finalized after years of negotiations. Their first fight ended controversially with Usyk winning by narrow split decision. A mandatory rematch took place in September 2024, which Usyk won more convincingly, cementing his legacy.

Organization	Title Held By	Date Won	Opponent Defeated
WBA (Super)	Oleksandr Usyk	August 20, 2022	Anthony Joshua
IBF	Oleksandr Usyk	August 20, 2022	Anthony Joshua
WBO	Oleksandr Usyk	October 31, 2020	Derek Chisora
WBC	Oleksandr Usyk	May 18, 2024	Tyson Fury

Table data source:1, 2, 3, 4

The table highlights how Usyk systematically captured each of the four major belts. His acquisition of the WBC title from Fury completed the rare unification, a feat never before accomplished in the heavyweight division during the four-belt era. The data underscores his dominance across multiple high-stakes bouts against elite competition.

Historical Context of Heavyweight Champions

The heavyweight division has always been the most prestigious in boxing. From legends like Muhammad Ali, Mike Tyson, and Lennox Lewis to modern stars such as Deontay Wilder and Andy Ruiz Jr., the title has symbolized global supremacy in combat sports. However, fragmentation due to multiple sanctioning bodies diluted the meaning of "champion" for years.

What Makes Undisputed Status Significant?

One true champion recognized across all major organizations
Eliminates confusion caused by multiple "world champions"
Increases legitimacy and marketability of the division
Rare achievement—only achieved once in heavyweight history

Future of the Heavyweight Division

With Usyk now firmly established as the undisputed king, the next chapter involves potential matchups with rising contenders like Zhilei Zhang, Joe Joyce, or even a return of Tyson Fury outside the championship picture. There are also talks of a farewell tour for Usyk, possibly culminating in a final defense in Kyiv.

Potential Next Challengers

Zhilei Zhang – Top-ranked contender with knockout power
Joe Joyce – Experienced British heavyweight
Agit Kabayel – European champion
Martin Bakole – Rising Congolese puncher

Frequently Asked Questions About the Heavyweight 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 since defeating Tyson Fury in May 2024.

How did Oleksandr Usyk become undisputed champion?

Usyk became undisputed by defeating Tyson Fury for the WBC title in May 2024, having already held the WBA, IBF, and WBO belts from previous victories over Anthony Joshua and others.

Has any other boxer been undisputed heavyweight champion before?

No fighter had unified all four major belts (WBA, WBC, IBF, WBO) in the heavyweight division before Usyk. While Lennox Lewis was recognized as undisputed in the late 1990s, that was before the four-belt era fully consolidated.

Is Tyson Fury still a world champion?

No, Tyson Fury lost his WBC title to Oleksandr Usyk in May 2024 and has not held any major world title since. He remains active but is no longer a reigning champion.

When is Oleksandr Usyk’s next fight?

As of October 2025, Usyk’s next fight is expected in early 2026, likely against mandatory challenger Zhilei Zhang, though no official date has been confirmed yet.