Bartosz Lesko

1. WIN
   vs Rafal Haratyk×1Title bout · Title win #1

   KSW 120: Haratyk vs Leśko 2· Jul 18, 2026· Light Heavyweight· 17-6-2 vs 21-6-2
   UD

   R5 · 05:00
2. WIN
   vs Bartosz Szewczyk

   KSW 116: Bartosiński vs Fleminas· Mar 14, 2026· Light Heavyweight· 16-6-2 vs 9-5-1
   UD

   R3 · 5:00
3. LOSS
   vs Rafal HaratykTitle bout

   KSW 111: De Fries vs Vojčák· Oct 18, 2025· Light Heavyweight· 15-6-2 vs 21-5-2
   UD

   R5 · 5:00
4. WIN
   vs Maciej Rozanski

   KSW 104: Kuberski vs Romanowski· Mar 8, 2025· Light Heavyweight· 15-5-2 vs 15-6
   DEC

   R3 · 5:00
5. WIN
   vs Dominik Humburger

   KSW 98: Paczuski vs Zerhouni· Sep 14, 2024· Light Heavyweight· 14-5-2 vs 8-2
   UD

   R3 · 5:00
6. LOSS
   vs Michal Michalski

   KSW 94 - Bartosinski vs Michaliszyn· May 11, 2024· Middleweight· 13-5-2 vs 12-5
   TKO

   R1 · 1:42
7. LOSS
   vs Piotr Kuberski

   KSW 88 - Rutkowski vs Kaczmarczyk· Nov 11, 2023· Middleweight· 13-4-2 vs 13-1
   KO

   R2 · 1:12
8. WIN
   vs Nemanja Nikolic

   KSW 84 - De Fries vs Bajor· Jul 15, 2023· Middleweight· 13-3-2 vs 9-1-1
   SUB

   R1 · 4:40
9. LOSS
   vs Tom Breese

   KSW 80 - Eskiev vs Ruchala· Mar 17, 2023· Middleweight· 12-3-2 vs 16-4
   SUB

   R1 · 2:45
10. WIN
    vs Damian Piwowarczyk

    KSW 70 - Pudzianowski vs Materla· May 28, 2022· Light Heavyweight· 12-2-2 vs 5-1
    UD

    R3 · 5:00
11. LOSS
    vs Husein Kushagov

    ACA 134: Koshkin vs Bagov· Dec 17, 2021· Heavyweight· 11-2-2 vs 16-6
    KO

    R2 · 1:37
12. WIN
    vs Ibragim Magomedov

    ACA 128: Omielańczuk vs Goncharov· Sep 11, 2021· Light Heavyweight· 11-1-2 vs 7-2
    DQ

    R1 · 3:14
13. WIN
    vs Rene Pessoa

    ACA 114: Omielańczuk vs Johnson· Nov 26, 2020· Light Heavyweight· 10-1-2 vs 22-7
    UD

    R3 · 5:00
14. WIN
    vs Kevin Wiwatowski

    Fight Exclusive Night 25· Jun 15, 2019· Light Heavyweight· 9-1-2 vs 5-7
    SUB

    R1 · 4:16
15. DRAW
    vs Marcin Naruszczka

    Fight Exclusive Night 24· Mar 16, 2019· Middleweight· 8-1-2 vs 19-9-2
    DEC
16. WIN
    vs Tomasz Kondraciuk

    Fight Exclusive Night 22· Oct 20, 2018· Middleweight· 8-1-1 vs 12-8
    SUB

    R1 · 4:15
17. WIN
    vs Kevin Wiwatowski

    Fight Exclusive Night 21· May 25, 2018· Light Heavyweight· 7-1-1 vs 4-6
    SUB

    R1 · 2:53
18. LOSS
    vs Marcin Naruszczka

    Fight Exclusive Night 20· Mar 10, 2018· Middleweight· 6-1-1 vs 19-8-1
    UD
19. WIN
    vs Paweł Brandys

    Fight Exclusive Night 19· Oct 14, 2017· Middleweight· 6-0-1 vs 6-5-2
    UD
20. WIN
    vs Aleksander Rychlik

    Fight Exclusive Night 17· May 12, 2017· Middleweight· 5-0-1 vs 5-3
    SUB

    R2 · 1:18
21. WIN
    vs Maciej Szydłowski

    Time of Masters· Nov 19, 2016· Middleweight· 4-0-1 vs 0-1
    SUB

    R1 · 2:01
22. WIN
    vs Tomasz Kubczak

    Time of Masters 2· Mar 12, 2016· Middleweight· 3-0-1 vs 0-1
    TKO

    R2 · 1:21
23. DRAW
    vs Robert Maciejowski

    MMA Fight Night 4· Dec 19, 2015· Middleweight· 2-0-1 vs 0-0-1
    DEC
24. WIN
    vs Mikołaj Dziąbor

    IFN 1: Let's Begin· Oct 24, 2015· Middleweight· 2-0 vs 0-2
    TKO

    R1 · 3:25
25. WIN
    vs Marek Michaluk

    Time of Masters 1· Jan 17, 2015· Middleweight· 1-0 vs 0-1
    SUB

    R1 · 2:45

Title bout· ×N = title win number N in that promotion