Main and co-main events
Matúš Juráček beat Gábor Boraros by unanimous decision after three rounds in the main event of OKTAGON 21. In the co-main event, Filip Macek beat Kostadin Enev by knockout at 4:01 of round one at strawweight.
How the card was decided
Across the twelve bouts that produced a result, two ended by knockout, four by submission and six on the judges' scorecards — six stoppages in twelve fights. Three of the six decisions divided the judges.
Finishes and fight times
The quickest finish belonged to Tereza Bledá, who stopped Judyta Rymarzak at 1:28 of round one, and five of the six finishes came inside the opening round. The longest was Lucia Szabova's submission of Rizlen Zouak, 6 minutes and 33 seconds in. End to end, the twelve fights filled one hour and 53 minutes of cage time.
Countries, weight classes and broadcast
Five weight classes were used, bantamweight most often with two bouts.