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
The event hosted a 1-night, 8-man tournament. Gromda 5
If you are following the sport, here are the standard rules that apply to GROMDA events: Gromda 5