Matches usually consist of four 2-minute rounds. If there is no winner, the 5th round is unlimited —the fight goes until a knockout or retirement.
One of the most notable bouts featured Bartłomiej "Balboa" Domalik , who won the GROMDA 5 tournament by defeating Patryk "Gleba" Tołkaczewski in the final.
Significant extra matches included professional fighters like Mateusz "Don Diego" Kubiszyn and Paweł "Byku" Strzelczyk , though some matches ended in a "No Contest" due to accidental fouls. Essential Bare-Knuckle Rules