Oktagon 81 features Will Fleury vs Martin Buday for the heavyweight title and Zhalgas Zhumagulov vs David Dvořák for the flyweight title in Prague on December 28, 2025.
Oktagon 81's Will Fleury Is Sick of "Fighters" Running
Fleury struggles to defend his light heavyweight title due to a stagnant division and opponents refusing title shots, prompting frustration despite willingness to fight heavyweights.
Claressa Shields successfully defended her undisputed heavyweight crown with a unanimous decision victory versus Lani Daniels at the Little Caesars Arena, with judges scoring 100-90, 99-91, 99-91 in favor of Shields.
