Mateusz Legierski

Mateusz Legierski (born July 23, 1996) is a Polish professional mixed martial artist. He currently competes in the Lightweight division of Oktagon MMA, where he is the current, two-time, and inaugural Lightweight Champion.

Mixed martial arts career Early career Legierski made his professional debut on September 22, 2018 against Kamil Czyżewski. Legierski won the fight via a second-round TKO.

His next fight came a month later on October 27 against Konrad Furmanek. Legierski won the fight via a first-round submission.

Oktagon MMA Legierski made his debut under Czech-based federation Oktagon MMA against Michal Konrád on March 16, 2019. Legierski won the fight via a first-round TKO.

His next fight came on June 8, 2019 against Ronald Paradeiser. Legierski won the fight via a second-round TKO.

His next fight came on November 9, 2019 against Jakub Bahník. Legierski won via a first-round knockout.

Inaugural Oktagon Lightweight Champion Legierski faced Miroslav Štrbák for the inaugural Oktagon lightweight championship on February 15, 2020. Legierski won the fight via a split decision, becoming the inaugural champion, and winning his first career championship in the process.

Konfrontacja Sztuk Walki Legierski returned to his native Poland after signing with Konfrontacja Sztuk Walki (KSW) on May 25, 2020, while vacating his Oktagon lightweight championship in the process.

Legierski was scheduled to face Roman Szymański in his promotional debut. The bout was later cancelled after Legierski withdrew due to injury, and was replaced with Filip Pejić.

His debut came on November 14, 2020 against Francisco Barrio. Legierski won the fight via a Majority Decision.

His final fight with the federation came on December 18, 2021 against Roman Szymański. Legierski lost the fight via a second-round TKO.

Return to Oktagon MMA Legierski returned to Oktagon MMA on July 23, 2022 against Matouš Kohout. Legierski won the fight via a third-round submission.

His next fight came on May 20, 2023 against Matěj Kuzník. Legierski won the fight via a Unanimous Decision.

His next fight came on October 7, 2023 against Karol Ryšavý. Legierski won the fight via a Unanimous Decision.

Oktagon Lightweight Tournament His next fight came on March 2, 2024 in a rematch against Matouš Kohout in the opening round of the Oktagon Lightweight Tournament. Legierski won the fight via a first-round submission.

In the quarterfinals, he faced Akonne Wanliss on June 8, 2024. Legierski won the fight via a Unanimous Decision.

In the semifinals, he faced Losene Keita on September 21, 2024. Legierski lost the fight via a Unanimous Deicision.

Oktagon MMA Lightweight Champion Following a fourteen-month hiatus, Legierski returned on November 22, 2025 where he faced Attila Korkmaz for the vacant Oktagon lightweight championship. Legierski won the fight via a Unanimous Decision, winning the championship for the second time in his career.

Championships and accomplishments Mixed martial arts Oktagon MMA Oktagon lightweight championship (Two time; current; inaugural)

Mixed martial arts record Win

Gökhan Aksu TKO (punches) Oktagon 90

Berlin, Germany Win

Attila Korkmaz Decision (unanimous) Oktagon 80

Munich, Germany Loss

Losene Keita Decision (unanimous) Oktagon 61

Brno, Czech Republic Win

Akonne Wanliss Decision (unanimous) Oktagon 58

Prague, Czech Republic Win

Matouš Kohout Submission (rear-naked choke) Oktagon 54

Ostrava, Czech Republic Win

Karol Ryšavý Decision (unanimous) Oktagon 47

Bratislava, Slovakia Win

Matěj Kuzník Decision (unanimous) Oktagon 43

Prague, Czech Republic Win

Matouš Kohout Submission (rear-naked choke) Oktagon 34

Prague, Czech Republic Loss

Roman Szymański TKO (punches) KSW 65

Gliwice, Poland Win

Francisco Barrio Decision (majority) KSW 56

Łódź, Poland Win

Miroslav Štrbák Decision (split) Oktagon Prime 3

Šamorín, Slovakia Win

Jakub Bahník KO (punch) Oktagon 15

Prague, Czech Republic Win

Ronald Paradeiser TKO (punches) Oktagon 12

Bratislava, Slovakia Win

Michal Konrád TKO (punches) Oktagon 11

Ostrava, Czech Republic Win

Konrad Furmanek Submission (triangle choke) Gala Sportów Walki 9

Międzychód, Poland Win

Kamil Czyżewski TKO (punches) PLMMA 76

Białystok, Poland Kickboxing record