
KSW 109: Kuberski vs. Paczuski is a mixed martial arts event to be held by Konfrontacja Sztuk Walki on August 9, 2025 at the ATM Studio in Warsaw, Poland.
Fight Card
Main card
Middleweight 84 kg Poland Piotr Kuberski vs. Poland Radosław Paczuski Interim Middleweight Championship Middleweight 84 kg Poland Michał Michalski vs. Croatia Andi Vrtačić Featherweight 66 kg Germany Eduard Kexel vs. Czech Republic Josef Štummer Women's Strawweight 52 kg Poland Ewelina Woźniak vs. Slovenia Monika Kučinić Welterweight 77 kg Poland Oskar Szczepaniak vs. Poland Daniel Skibiński Light Heavyweight 93 kg Poland Bartosz Szewczyk vs. Poland Dawid Kasperski Middleweight 84 kg Belgium Alain Van De Merckt vs. Poland Borys Dzikowski Welterweight 77 kg Poland Michał Gniady vs. Czech Republic Viktor Červinský
Background
The XTB KSW 109 event will take place in Warsaw on Saturday, August 9th.
In the main event, Piotr Kuberski (16-1, 14 KOs), the undefeated KSW interim middleweight champion, will defend his belt against Radosław Paczuski (8-2, 6 KOs), the number three ranked middleweight, who is riding a three-fight winning streak.
In the second bout of the evening, Andi Vrtačić (7-2, 4 KOs), the number ten ranked middleweight, will face Michał Michalski (12-5, 7 KOs, 1 Sub).
Piotr Kuberski will step into the KSW round cage for the fifth time and defend his belt for the first time. He last fought in March, when he faced Tomasz Romanowski for the interim title. Kuberski won the championship belt and remained undefeated in the KSW cage.
Radosław Paczuski will fight for the eighth time in KSW. He last competed in the round cage in January, when he faced the experienced Kleber Silva. Ultimately, the Brazilian survived, but had to concede the superiority of Paczuski, who won the fight on points.

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