Main and co-main events
Ľudovít Klein beat Krzysztof Klaczek by knockout at 2:09 of round one in the main event of OKTAGON 4. In the co-main event, Michal Martínek beat Benjamin Islami by knockout at 2:45 of round one at heavyweight.
How the card was decided
Across the ten bouts that produced a result, four ended by knockout, five by submission and one on the judges' scorecards — nine stoppages in ten fights. Every decision was unanimous: not one result divided the judges.
Finishes and fight times
The quickest finish belonged to Jusup Soltaev, who stopped Krisztian Simon after 53 seconds, and seven of the nine finishes came inside the opening round. The longest was Samuel Krištofič's submission of Radovan Úškrt, 12 minutes and 6 seconds in. End to end, the ten fights filled 53 minutes of cage time.
Main card against the prelims
The main card finished at the higher rate: seven of seven, against two of the three below it. Marko Kisič (submission, round one) and Jusup Soltaev (knockout, round one) all closed before the judges were needed.
Countries, weight classes and broadcast
Four weight classes were used, lightweight most often with three bouts.
