KSW 31 was a mixed martial arts event held on 23, 2015 at the Ergo Arena in Gdańsk, Poland.
KSW 32 was a mixed martial arts event held on October 31, 2015, at the Wembley Arena in London, England.
KSW 33 was a mixed martial arts event held on November 28, 2015, at the Tauron Arena in Kraków, Poland.
UFC veteran Tomasz Drwal was expected to face Aziz Karaoglu on his way to a KSW Middleweight Championship bout against winner of the main event of KSW 33, but Drwal pulled out due to a knee injury.
Ariane Lipski also replaced Kamila Porczyk who pulled out from her match against Katarzyna Lubonska due to injury.