No. 4 · Heavyweight
Oleksandr Usyk
Ukraine · Ring Magazine Heavyweight Champion (Vacated WBA/WBC/IBF)
He didn't lose the belts — he handed them back. On June 26, three weeks after needing a contested eleventh-round stoppage to get past a 37-year-old kickboxer making his second pro appearance, Usyk vacated the WBA, WBC, and IBF titles outright, keeping only the Ring Magazine strap boxing treats as the true lineal recognition. He says it's not retirement — one "last dance" fight remains, opponent and timeline both unannounced. The résumé (Joshua twice, Fury, Dubois twice, still 25-0) hasn't gone anywhere, and giving up hardware voluntarily isn't a loss. But a fighter walking away from three belts a month after visibly struggling, with no confirmed next fight, is not a status quo story. This is a champion managing the end of his own timeline — and the uncertainty of that "last dance" is doing real work against him here.
Ring Magazine Champion (Lineal)
Vacated Belts — Last Dance Unconfirmed