Josef Štummer
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Liberec, Czech Republic
| Josef Štummer | |
|---|---|
| Born | 28 December 1996 Liberec, Czech Republic |
| Other names | Air |
| Height | 5 ft 10 in (1.78 m) |
| Weight | 148 lb (67 kg; 10 st 8 lb) |
| Division |
|
| Reach | 68.1 in (173 cm)[1] |
| Stance | Orthodox |
| Fighting out of | Liberec, Czech Republic |
| Team | MMA Liberec |
| Years active | 2022–present |
| Mixed martial arts record | |
| Total | 9 |
| Wins | 7 |
| By knockout | 1 |
| By submission | 2 |
| By decision | 4 |
| Losses | 2 |
| By knockout | 1 |
| By submission | 1 |
| Other information | |
| Mixed martial arts record from Sherdog | |
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).
Early career
Štummer made his professional debut on July 23, 2022, against Bartosz Rewera. Štummer won the fight via a Unanimous Decision.[2]
His next fight came on February 4, 2023, against Gergely Csibi. Štummer won the fight via a third-round submission.[3]
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.[4]
His next fight came on October 14, 2023, against Dawid Kareta. Štummer lost the fight via a first-round knockout.[5]
His next fight came on February 17, 2024, against Adrian Wieliczko. Štummer won the fight via a second-round submission.[6][7] This fight earned him his first Submission of the Night bonus.[8]
His next fight came on October 19, 2024, against Wojciech Kazieczko. Štummer lost the fight via a third-round submission.[9]
His next fight came on February 21, 2025, against Nacim Belhouachi. Štummer won the fight via a first-round knockout.[10][11] This fight earned him his first career Knockout of the Night bonus.[12]
His next fight came on August 9, 2025, against Eduard Kexel. Štummer won the fight via a Unanimous Decision.[13]
His next fight came on February 21, 2026, against Michał Domin. Before the bout began, he was deducted one point due to missing weight.[14] Štummer won the fight via a Unanimous Decision.[15][16]
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
| 9 matches | 7 wins | 2 losses |
| By knockout | 1 | 1 |
| By submission | 2 | 1 |
| By decision | 4 | 0 |
| Res. | Record | Opponent | Method | Event | Date | Round | Time | Location | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Win | 7–2 | Michał Domin | Decision (unanimous) | KSW 115 | February 21, 2026 | 3 | 5:00 | Lubin, Poland | Štummer deducted one point before the fight due to missing weight (148 lb). |
| Win | 6–2 | Eduard Kexel | Decision (unanimous) | KSW 109 | August 9, 2025 | 3 | 5:00 | Warsaw, Poland | |
| Win | 5–2 | Nacim Belhouachi | KO (punch) | KSW 103 | February 21, 2025 | 1 | 2:02 | Liberec, Czech Republic | Knockout of the Night. |
| Loss | 4–2 | Wojciech Kazieczko | Submission (ninja choke) | KSW 99 | October 19, 2024 | 3 | 4:09 | Gliwice, Poland | |
| Win | 4–1 | Adrian Wieliczko | Submission (triangle choke) | KSW 91 | February 17, 2024 | 2 | 4:20 | Liberec, Czech Republic | Submission of the Night. |
| Loss | 3–1 | Dawid Kareta | KO (knees) | KSW 87 | October 14, 2023 | 1 | 4:10 | Třinec, Czech Republic | |
| Win | 3–0 | Jonatan Kujawa | Decision (unanimous) | KSW 81 | April 22, 2023 | 3 | 5:00 | Tomaszów Mazowiecki, Poland | |
| Win | 2–0 | Gergely Csibi | Submission (scarf hold) | Real Fight Arena 8 | February 4, 2023 | 3 | 1:16 | Budapest, Hungary | |
| Win | 1–0 | Bartosz Rewera | Decision (unanimous) | Real Fight Arena 3 | July 23, 2022 | 3 | 5:00 | Ostrava, Czech Republic | Featherweight debut. |
Submission grappling record
| Professional Submission grappling record 1 Matche1, 1 Win (0 Submissions), 0 Losses (0 Submission), 0 Draws | |||||||
| Result | Rec. | Opponent | Method | Event | Date | Location | |
|---|---|---|---|---|---|---|---|
| Win | 1-0 |  Michael Pryjmačuk |
Decision (points) | Tatamy 10 Beatdown | June 22, 2024 | Brno, Czech Republic | |