Who Is the Heavyweight Boxing Champion Now?

By Sarah Miller · March 21, 2048

The current undisputed heavyweight boxing champion of the world is Oleksandr Usyk, who holds all four major titles (WBA, WBC, IBF, and WBO) after defeating Tyson Fury in May 2024.

Who Is the Current Heavyweight Boxing Champion?

Oleksandr Usyk is the reigning undisputed 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, unifying all four major world titles: WBA (Super), WBC, IBF, and WBO. This victory solidified his status as the first male boxer in the four-belt era to become the undisputed champion in both the cruiserweight and heavyweight divisions.

Key Facts About Oleksandr Usyk

Nationality: Ukrainian
Date of Birth: January 17, 1987
Professional Record: 22 wins (13 KOs), 0 losses
Height: 6'3" (191 cm)
Reach: 78" (198 cm)
Stance: Orthodox
Last Fight: May 18, 2024 vs. Tyson Fury (Won)

Path to Undisputed Glory

Usyk's journey to becoming the undisputed heavyweight champion was marked by discipline, strategic brilliance, and elite technical skill. After winning Olympic gold in 2012 and dominating the cruiserweight division, he moved up to heavyweight in 2019.

Milestones in Usyk’s Heavyweight Career

Defeated Anthony Joshua twice (2021 and 2022) to win the WBA, IBF, WBO, and IBO titles.
Lost a narrow decision to Tyson Fury in August 2023 but exercised his rematch clause.
Won the rematch in May 2024, capturing the WBC title and achieving undisputed status.

Why the Heavyweight Championship Matters

The heavyweight division is considered the most prestigious in boxing. Unlike other weight classes, it has no upper weight limit, often showcasing the sport’s biggest stars and most powerful punchers. Holding all four major belts signifies complete dominance and earns the "undisputed" label—a rare achievement in modern boxing.

Challenges to Unification

Promotional conflicts between rival organizations (e.g., Top Rank, Matchroom, PBC).
Network broadcasting exclusivity deals that limit cross-promotion.
Athletes avoiding high-risk fights to protect records and earnings.

Organization	Champion	Title Status	Date Won	Last Defense
WBA (Super)	Oleksandr Usyk	Undisputed	August 20, 2021	May 18, 2024
WBC	Oleksandr Usyk	Undisputed	May 18, 2024	May 18, 2024
IBF	Oleksandr Usyk	Undisputed	August 20, 2021	May 18, 2024
WBO	Oleksandr Usyk	Undisputed	August 20, 2021	May 18, 2024

Table data source:1, 2, 3, 4

The table confirms that Oleksandr Usyk holds all four major world titles as of May 2024. His victory over Tyson Fury unified the division for the first time since the four-belt era began. This level of dominance is unprecedented in the heavyweight class, where fragmentation has long been the norm due to organizational politics and financial interests.

About the Major Sanctioning Bodies

The four primary organizations that award world titles in boxing are the WBA, WBC, IBF, and WBO. While critics argue about redundancy, each organization maintains global influence and rankings. Unifying all four belts is the ultimate goal for any top boxer.

Overview of Sanctioning Organizations

WBA (World Boxing Association): Oldest organization, founded in 1921.
WBC (World Boxing Council): Founded in 1963, known for its green belt and emphasis on fighter safety.
IBF (International Boxing Federation): Strictly adheres to rankings and mandatory challengers.
WBO (World Boxing Organization): Initially European-based, now globally recognized.

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, having won all four major world titles (WBA, WBC, IBF, WBO) after defeating Tyson Fury in May 2024.

Has any boxer been undisputed champion before Usyk?

Yes, Lennox Lewis was the last undisputed heavyweight champion before the four-belt era, unifying titles in 1999. No male boxer had unified all four major belts (WBA, WBC, IBF, WBO) until Usyk achieved it in 2024.

Did Oleksandr Usyk beat Tyson Fury?

Yes, Oleksandr Usyk defeated Tyson Fury in their rematch on May 18, 2024, by split decision. He lost their first encounter in August 2023 but activated his contractual rematch clause to earn another shot.

What makes a boxer 'undisputed'?

A boxer is considered 'undisputed' when they hold all four major world titles—WBA, WBC, IBF, and WBO—in their weight class simultaneously, proving supremacy without rivals holding legitimate claims.

Will Oleksandr Usyk fight again in 2025?

As of October 2025, negotiations are underway for Usyk to face Derek Chisora or Joe Joyce in a voluntary defense, though a potential unification bout with rising contender Martin Bakole remains possible if approved by sanctioning bodies.