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Boxing

World Boxing Organization (WBO)

The World Boxing Organization, founded in 1988 and based in Puerto Rico, is the youngest of the four major bodies.

Facts last verified: Oct 18, 2026

1988Founded
San Juan, Puerto RicoHeadquarters
Fourth beltCompletes the undisputed set
Daniel DuboisHeavyweight champion (since May 9, 2026)
Nov 17, 2025Usyk vacated the WBO heavyweight title

The World Boxing Organization, founded in 1988 and based in Puerto Rico, is the youngest of the four major bodies. Its belt completes the four-belt set needed to be undisputed champion. Oleksandr Usyk vacated the WBO heavyweight title on November 17, 2025, and the WBO elevated Fabio Wardley to full champion. Daniel Dubois won the title from Wardley on May 9, 2026 and retained it in their rematch on October 17, 2026.

Current champions

TitleChampionDetails
HeavyweightDaniel DuboisWon from Fabio Wardley, May 9, 2026; retained Oct 17, 2026

Sources: Al Jazeera, Oct 18, 2026 · Wikipedia: Fabio Wardley. Facts verified Oct 18, 2026.

Schedule

WBO title fights run year-round across promoters.

No dated events announced yet.

Latest WBO

Athletes

Daniel DuboisBoxing · HeavyweightWBO Heavyweight Champion (since May 9, 2026); former IBF championActive24-3Fabio WardleyBoxing · HeavyweightFormer WBO Heavyweight ChampionActive20-2-1

More on WBO

Official site · History (Wikipedia)

Coverage led by David Thompson, MMA & Boxing Editor. Fact-checked by John Miller, Editor-in-Chief.