Michał Cieślak has two losses against two opponents on his boxing record. For a list of Cieślak's best fights, refer to "Best fights of Michał Cieślak".
On February 27, 2022 Michał Cieślak fought Lawrence Okolie in a cruiserweight world-title fight for Okolie's WBO title. Cieślak was 32 years old and with a record of 21-2 (15), and Okolie was 29 years old and with a record of 17-0 (14). Cieślak lost the fight via 12-round unanimous decision.
On January 31, 2020 Michał Cieślak fought Ilunga Makabu in a cruiserweight world-title fight for the WBC title. Cieślak was 30 years old and with a record of 19-1 (13), and Makabu was 32 years old and with a record of 26-2 (24). Cieślak lost the fight via 12-round unanimous decision.
