Tickets

8 Futbolnaya Alley, Saint Petersburg, Russia

March 28, 2026, 6:00 PM, KSK Arena

IBA Bare Knuckle Announces Official Weight Classes

Yoel Romero vs Vagab Vagabov to Headline IBA Bare Knuckle #4 in Saint Petersburg

Legendary Cuban former UFC fighter Yoel Romero will compete in a bare-knuckle bout in Saint Petersburg. His opponent, Vagab Vagabov, is one of the most exciting and dangerous fighters in Russia’s bare-knuckle scene.

IBA Bare Knuckle Announces Official Weight Classes

IBA Bare Knuckle has officially approved the list of weight classes for its bouts.

Zolotoy Set for Rematch Against “Chef” at IBA BK #4 in Saint Petersburg

The fight will co-headline the event under bare-knuckle rules — 5 rounds of 2 minutes — with a championship belt at stake.