Oktagon 81 took place on 29 December 2025 at O2 Arena, Prague, Czech Republic. Main event: Will Fleury def. Martin Buday (TKO (punches) · R1 1:40). Full results for all 11 fights on the card, with winner, method and round.
Full results
Main Card
- Will Fleury 17-4-0, 1 NC · IrelandMartin Buday 16-4-0 · SlovakiaWill Fleury def. Martin Buday TKO (punches) · R1 1:40
- Zhalgas Zhumagulov 19-9-0, 1 NC · KazakhstanDavid Dvořák 22-8-0 · Czech RepublicZhalgas Zhumagulov def. David Dvořák TKO (doctor stoppage) · R3 5:00
- Patrik Kincl 30-12-0, 1 NC · Czech RepublicRobert Pukač 21-15-1 · SlovakiaPatrik Kincl def. Robert Pukač Decision (unanimous) · R3 5:00
- Daniel Škvor def. Patrick Vespaziani Submission (guillotine choke) · R2 3:16
- Ondřej Raška def. Pavel Tóth TKO (punches) · R1 1:19
Prelims
- Miloš Petrášek 13-9-1 · Czech RepublicMateusz Strzelczyk 16-16-1, 1 NC · PolandMateusz Strzelczyk def. Miloš Petrášek Submission (armbar) · R2 1:51
- Jonas Mågård def. Elvis Batista da Silva Decision (unanimous) · R3 5:00
- Veronika Smolková def. Marta Sós TKO (elbows and punches) · R1 2:29
- Hugo Vach def. Vojtěch Khol Decision (unanimous) · R3 5:00
- Alex Hutyra def. Viktor Kováč Submission (rear-naked choke) · R2 2:52
- Ivan Klevets def. Bartłomiej Skowyra Decision (unanimous) · R3 5:00