Ultimate Fighting Calendar
Josef Stummer
Fighter

Josef Stummer

"Air"
7-2-0KSW #6FeatherweightCzechiaCzechiaLast 5
Amateur MMA 5-1Grappling 1-0
NEXT FIGHT
vs Lukasz Charzewski
KSWKSW 121 - Vojcak vs. Wojcik·

CAREER SUMMARY

Josef Stummer holds a professional MMA record of 7-2-0. Their full professional MMA career spans 9 bouts on record. Josef Stummer has won 7 fights: 1 by KO/TKO, 2 by submission, 4 by decision. Of 2 career losses, 1 came by KO/TKO and 1 by submission. Josef Stummer also has 1 recorded Grappling bout. Most recent fight: February 21, 2026. Tracked organizations: KSW.

Profile

Height
5'8"173 cm
Weight
148 lbs67 kg
Reach
68"173 cm
DOB
1996-12-28
Age
29
Nationality
Czechia
Birthplace
Liberec, Czech Republic

Upcoming

  1. KSWKSW 121 - Vojcak vs. Wojcik
    vs Lukasz CharzewskiFeatherweight

Career history

  1. WIN
    vs Michal Domin
    KSWKSW 115 - Przybysz vs. Yakymenko· Feb 21, 2026· 148 lb Catchweight· 6-2 vs 7-4
    UD
    R3 · 5:00
  2. WIN
    vs Eduard Kexel
    KSWKSW 109 - Kuberski vs. Paczuski· Aug 9, 2025· Featherweight· 5-2 vs 10-2
    UD
    R3 · 5:00
  3. WIN
    vs Nacim Belhouachi
    KSWKSW 103 - Brichta vs. Charzewski· Feb 21, 2025· Featherweight· 4-2 vs 4-3
    KO
    R1 · 2:02
  4. LOSS
    vs Wojciech Kazieczko
    KSWKSW 99 - Vojcak vs. Martinek· Oct 19, 2024· Featherweight· 4-1 vs 4-2
    SUB
    R3 · 4:09
  5. WIN
    vs Adrian Wieliczko
    KSWKSW 91 - Mircea vs. Brichta· Feb 17, 2024· Featherweight· 3-1 vs 2-1
    SUB
    R2 · 4:20
  6. LOSS
    vs Dawid Kareta
    KSWKSW 87 - Stosic vs. Martinek· Oct 14, 2023· Featherweight· 3-0 vs 4-3
    TKO
    R1 · 4:10
  7. WIN
    vs Jonatan Kujawa
    KSWKSW 81 - Bartosinski vs. Szczepaniak· Apr 22, 2023· Featherweight· 2-0 vs 1-0
    UD
    R3 · 5:00
  8. WIN
    vs Gergely Csibi
    RFA 8· Feb 4, 2023· Featherweight· 1-0 vs 4-2
    SUB
    R3 · 1:16
  9. WIN
    vs Bartosz Rewera
    RFA 3· Jul 23, 2022· Featherweight· 0-0 vs 1-1
    UD

Career history data via Tapology.

Official KSW Ranking

Josef Stummer's standing in the official KSW rankings.

Current
#6 Featherweight
Peak
#6 Featherweight
First ranked
Aug 1, 2026
Times ranked
2

Featherweight

#1#5#10#15Aug 1, 2026 · #6Aug 20, 2026 · #6#6

View full KSW rankings →

UFCalendar Power Index rating

Current
1631▲23
Peak
1631Feb 21, 2026
Rated fights
9
15001550160016502023202420252026Jul 23, 2022 · 1534Feb 4, 2023 · 1584Apr 22, 2023 · 1615Oct 14, 2023 · 1553Feb 17, 2024 · 1606Oct 19, 2024 · 1546Feb 21, 2025 · 1581Aug 9, 2025 · 1608Feb 21, 2026 · 16311631

See the full Power Index →

Frequently asked questions

When does Josef Stummer fight next?

Josef Stummer fights Lukasz Charzewski on Saturday, September 19, 2026 at KSW 121 - Vojcak vs. Wojcik.

What is Josef Stummer's record?

Josef Stummer's professional MMA record is 7-2-0.

Who is Josef Stummer fighting next?

Josef Stummer's next opponent is Lukasz Charzewski at KSW 121 - Vojcak vs. Wojcik.

Who did Josef Stummer fight last?

Josef Stummer most recently fought Michal Domin at KSW 115 - Przybysz vs. Yakymenko on Saturday, February 21, 2026, WIN (Unanimous Decision).

What weight class does Josef Stummer fight in?

Josef Stummer fights at Featherweight.

How many knockouts does Josef Stummer have?

Josef Stummer has 1 win by KO/TKO and 2 wins by submission.

How tall is Josef Stummer?

Josef Stummer is 5'8" (173 cm) tall.

How much does Josef Stummer weigh?

Josef Stummer weighs 148 lbs (67 kg).

What is Josef Stummer's reach?

Josef Stummer has a reach of 68" (173 cm).

How old is Josef Stummer?

Josef Stummer is 29 years old (born Dec 28, 1996).

Where is Josef Stummer from?

Josef Stummer is from Czechia.