Ultimate Fighting Calendar
Adrian Bartosinski
Fighter

Adrian Bartosinski

"Bartos"
19-1-0PolandPolandLast 5
Amateur MMA 9-2
NEXT FIGHT
vs Adam Masaev
KSWKSW 122 - Bartosinski vs. Masaev·

CAREER SUMMARY

Adrian Bartosinski holds a professional MMA record of 19-1-0. Their full professional MMA career spans 20 bouts on record. Adrian Bartosinski has won 19 fights: 12 by KO/TKO, 2 by submission, 5 by decision. Of 1 career loss, 0 came by KO/TKO and 1 by submission. Most recent fight: March 14, 2026. Tracked organizations: KSW.

Profile

Height
5'11"180 cm
Weight
170 lbs77 kg
Reach
72"183 cm
DOB
1995-08-26
Age
31
Nationality
Poland
Birthplace
Lodz, Poland

Upcoming

  1. KSWKSW 122 - Bartosinski vs. Masaev
    vs Adam MasaevWelterweight

Career history

  1. WIN
    vs Madars Bertholds-Fleminas
    KSWKSW 116 - Bartosinski vs. Fleminas· Mar 14, 2026· Welterweight· 18-1 vs 14-7
    SD
    R5 · 5:00
  2. WIN
    vs Muslim Tulshaev
    KSWKSW 113 - Bartosinski vs. Tulshaev· Dec 20, 2025· Welterweight· 17-1 vs 14-3
    TKO
    R3 · 4:56
  3. WIN
    vs Andrzej Grzebyk
    KSWKSW 105: Bartosiński vs. Grzebyk· Apr 26, 2025· Welterweight· 16-1 vs 22-6
    DEC
    R5 · 5:00
  4. LOSS
    vs Mamed Khalidov
    KSWKSW 100: Khalidov vs. Bartosiński· Nov 16, 2024· Light Heavyweight· 16-0 vs 37-8-2
    SUB
    R2 · 2:48
  5. WIN
    vs Igor Michaliszyn
    KSWKSW 94 - Bartosinski vs. Michaliszyn· May 11, 2024· Welterweight· 15-0 vs 10-2
    SUB
    R3 · 4:50
  6. WIN
    vs Salahdine Parnasse
    KSWKSW 89 - Bartosinski vs. Parnasse· Dec 16, 2023· Welterweight· 14-0 vs 18-1
    UD
    R5 · 5:00
  7. WIN
    vs Artur Szczepaniak
    KSWKSW 81 - Bartosinski vs. Szczepaniak· Apr 22, 2023· Welterweight· 13-0 vs 9-1
    TKO
    R1 · 1:47
  8. WIN
    vs Krystian Kaszubowski
    KSWKSW 76 - Parnasse vs. Rajewski· Nov 12, 2022· Welterweight· 12-0 vs 10-2
    TKO
    R1 · 4:58
  9. WIN
    vs Andrzej Grzebyk
    KSWKSW 67 - De Fries vs. Stosic· Feb 26, 2022· 172 lb Catchweight· 11-0 vs 18-4
    SUB
    R2 · 0:33
  10. WIN
    vs Michal Michalski
    KSWKSW 62 - Kolecki vs. Szostak· Jul 17, 2021· Welterweight· 10-0 vs 9-4
    TKO
    R1 · 1:53
  11. WIN
    vs Lionel Padilla
    KSWKSW 59 - Fight Code· Mar 20, 2021· Welterweight· 9-0 vs 8-1
    TKO
    R3 · 4:05
  12. WIN
    vs Piotr Walawski
    Tylko Jeden· Apr 17, 2020· 8-0 vs 8-4-1
    TKO
    R3 · 0:23
  13. WIN
    vs Kamil Dołgowski
    Tylko Jeden· Mar 20, 2020· 7-0 vs 5-0
    TKO
    R1 · 3:00
  14. WIN
    vs Konstantin Linnik
    Wirtuoz Challenge· Dec 6, 2019· Catchweight· 6-0 vs 17-14
    TKO
    R1 · 1:05
  15. WIN
    vs Krystian Bielski
    Fight Exclusive Night 26· Oct 12, 2019· Catchweight· 5-0 vs 5-1
    TKO
    R2 · 2:15
  16. WIN
    vs Alexander Shingarenko
    RWC 3· Jul 5, 2019· Middleweight· 4-0 vs 6-3
    TKO
    R1 · 2:41
  17. WIN
    vs Vladislav Schepanskyi
    Wirtuoz Challenge 2· Apr 6, 2019· Middleweight· 3-0 vs 3-8
    TKO
    R1 · 2:30
  18. WIN
    vs Jaroslaw Lech
    Wirtuoz Challenge 1· Sep 22, 2018· Middleweight· 2-0 vs 1-1
    TKO
    R2 · 3:10
  19. WIN
    vs Wojciech Żuchnik
    Thunderstrike Fight League 13· Mar 23, 2018· Middleweight· 1-0 vs 0-0
    UD
  20. WIN
    vs Michał Pach
    Thunderstrike Fight League 12· Nov 18, 2017· Middleweight· 0-0 vs 0-0
    UD

Career history data via Tapology.

Official KSW Ranking

Adrian Bartosinski's standing in the official KSW rankings.

Current
Unranked
Peak
Champion Welterweight
First ranked
Jan 8, 2022
Times ranked
14

Welterweight

C#5#10#152023202420252026Jan 8, 2022 · #4Mar 20, 2022 · #1May 26, 2022 · #1Aug 11, 2022 · #1Dec 7, 2022 · #1Mar 30, 2023 · #1Jun 10, 2023 · CDec 1, 2023 · CApr 21, 2024 · CJun 14, 2024 · CAug 1, 2026 · CC

View full KSW rankings →

UFCalendar Power Index rating

Current
1876▲2
Peak
1890May 11, 2024
Rated fights
20
15001650180020182020202220242026Nov 18, 2017 · 1528Mar 23, 2018 · 1554Sep 22, 2018 · 1588Apr 6, 2019 · 1608Jul 5, 2019 · 1641Oct 12, 2019 · 1677Dec 6, 2019 · 1696Mar 20, 2020 · 1717Apr 17, 2020 · 1734Mar 20, 2021 · 1753Jul 17, 2021 · 1777Feb 26, 2022 · 1806Nov 12, 2022 · 1829Apr 22, 2023 · 1850Dec 16, 2023 · 1873May 11, 2024 · 1890Nov 16, 2024 · 1849Apr 26, 2025 · 1865Dec 20, 2025 · 1874Mar 14, 2026 · 18761876

See the full Power Index →

Frequently asked questions

When does Adrian Bartosinski fight next?

Adrian Bartosinski fights Adam Masaev on Saturday, October 10, 2026 at KSW 122 - Bartosinski vs. Masaev.

What is Adrian Bartosinski's record?

Adrian Bartosinski's professional MMA record is 19-1-0.

Who is Adrian Bartosinski fighting next?

Adrian Bartosinski's next opponent is Adam Masaev at KSW 122 - Bartosinski vs. Masaev.

Who did Adrian Bartosinski fight last?

Adrian Bartosinski most recently fought Madars Bertholds-Fleminas at KSW 116 - Bartosinski vs. Fleminas on Saturday, March 14, 2026, WIN (Split Decision).

What weight class does Adrian Bartosinski fight in?

Adrian Bartosinski fights at Welterweight.

How many knockouts does Adrian Bartosinski have?

Adrian Bartosinski has 12 wins by KO/TKO and 2 wins by submission.

How tall is Adrian Bartosinski?

Adrian Bartosinski is 5'11" (180 cm) tall.

How much does Adrian Bartosinski weigh?

Adrian Bartosinski weighs 170 lbs (77 kg).

What is Adrian Bartosinski's reach?

Adrian Bartosinski has a reach of 72" (183 cm).

How old is Adrian Bartosinski?

Adrian Bartosinski is 31 years old (born Aug 26, 1995).

Where is Adrian Bartosinski from?

Adrian Bartosinski is from Poland.