About Josef Štummer
Born 1996. Josef Štummer is a mixed martial arts fighter.
Josef Štummer (born 28 December 1996) is a Czech professional mixed martial artist. He currently competes in the Featherweight division of Konfrontacja Sztuk Walki (KSW).
Professional career Early career Štummer made his professional debut on July 23, 2022, against Bartosz Rewera. Štummer won the fight via a Unanimous Decision.
His next fight came on February 4, 2023, against Gergely Csibi. Štummer won the fight via a third-round submission.
Konfrontacja Sztuk Walki Štummer made his debut under Konfrontacja Sztuk Walki (KSW) on April 22, 2023, against Jonatan Kujawa. Štummer won the fight via a Unanimous Decision.
His next fight came on October 14, 2023, against Dawid Kareta. Štummer lost the fight via a first-round knockout.
His next fight came on February 17, 2024, against Adrian Wieliczko. Štummer won the fight via a second-round submission. This fight earned him his first Submission of the Night bonus.
His next fight came on October 19, 2024, against Wojciech Kazieczko. Štummer lost the fight via a third-round submission.
His next fight came on February 21, 2025, against Nacim Belhouachi. Štummer won the fight via a first-round knockout. This fight earned him his first career Knockout of the Night bonus.
His next fight came on August 9, 2025, against Eduard Kexel. Štummer won the fight via a Unanimous Decision.
His next fight came on February 21, 2026, against Michał Domin. Before the bout began, he was deducted one point due to missing weight. Štummer won the fight via a Unanimous Decision.
Championships and accomplishments Mixed martial arts Konfrontacja Sztuk Walki Submission of the Night (One time) Knockout of the Night (One time)
Mixed martial arts record Win
Michał Domin Decision (unanimous) KSW 115
Lubin, Poland Win
Eduard Kexel Decision (unanimous) KSW 109
Warsaw, Poland Win
Nacim Belhouachi KO (punch) KSW 103
Liberec, Czech Republic Loss
Wojciech Kazieczko Submission (ninja choke) KSW 99
Gliwice, Poland Win
Adrian Wieliczko Submission (triangle choke) KSW 91
Liberec, Czech Republic Loss
Dawid Kareta KO (knees) KSW 87
Třinec, Czech Republic Win
Jonatan Kujawa Decision (unanimous) KSW 81
Tomaszów Mazowiecki, Poland Win
Gergely Csibi Submission (scarf hold) Real Fight Arena 8
Budapest, Hungary Win
Bartosz Rewera Decision (unanimous) Real Fight Arena 3
Ostrava, Czech Republic Submission grappling record
Result
Opponent Method Event Date Location Win
Michael Pryjmačuk Decision (points) Tatamy 10 Beatdown June 22, 2024 Brno, Czech Republic
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Important facts
Related people
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Contemporaries
People whose lives overlapped Josef Štummer's
Frequently asked questions
Who is Josef Štummer?
Czech mixed martial artist (born 1996)
When was Josef Štummer born?
Josef Štummer was born on 28 December 1996.
What is Josef Štummer's occupation?
Josef Štummer is a mixed martial arts fighter.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Josef Štummer. https://biography.guide/josef-stummer/
MLA: "Josef Štummer." Biography.guide, https://biography.guide/josef-stummer/.
Chicago: "Josef Štummer." Biography.guide. https://biography.guide/josef-stummer/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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