KSW: Longest fights
The all-time KSW top 100, rebuilt from every completed KSW fight in our database.
Updated September 20, 2026
A fighter with a bout in the last 18 months. Country boards rank every fighter from that country and cannot be combined with the active filter.
| # | Fighter | Longest fights | Round | Fight | Date |
|---|---|---|---|---|---|
| T-1 |   Adrian Bartosinski | 25:00 | 5 | Salahdine ParnasseWelterweight | Dec 16, 2023 |
| T-1 | Adrian Bartosinski | 25:00 | 5 | Andrzej GrzebykWelterweight | Apr 26, 2025 |
| T-1 | Adrian Bartosinski | 25:00 | 5 | Madars Bertholds-FleminasWelterweight | Mar 14, 2026 |
| T-4 |  Marcin Krakowiak | 15:00 | 3 | Henry FadipeWelterweight | Apr 22, 2023 |
| T-4 |  Andrzej Grzebyk | 15:00 | 3 | Brian HooiWelterweight | May 13, 2023 |
| T-4 |   Henry Fadipe | 15:00 | 3 | Krystian KaszubowskiWelterweight | Jul 15, 2023 |
| T-4 | Marcin Krakowiak | 15:00 | 3 | Michal PietrzakWelterweight | Aug 19, 2023 |
| T-4 | Andrzej Grzebyk | 15:00 | 3 | Madars Bertholds-FleminasWelterweight | Dec 16, 2023 |
| T-4 |  Kacper Koziorzebski | 15:00 | 3 | Viktor CervinskyWelterweight | Feb 17, 2024 |
| T-4 |  Maciej Jewtuszko | 15:00 | 3 | Marius ZaromskisWelterweight | Mar 16, 2024 |
| T-4 |  Oskar Szczepaniak | 15:00 | 3 | Adrian ZielinskiWelterweight | Jun 7, 2024 |
| T-4 |  Michal Guzik | 15:00 | 3 | Konrad RusinskiWelterweight | Aug 24, 2024 |
| T-4 | Kacper Koziorzebski | 15:00 | 3 | Matúš JuráčekWelterweight | Oct 19, 2024 |
| T-4 |   Aymard Guih | 15:00 | 3 | Dawid SmielowskiWelterweight | Nov 16, 2024 |
| T-4 |   Welisson Paiva | 15:00 | 3 | Dawid SmielowskiWelterweight | Feb 21, 2025 |
| T-4 |  Szymon Karolczyk | 15:00 | 3 | Bartlomiej KoperaWelterweight | Mar 8, 2025 |
| T-4 |  Hugo Deux | 15:00 | 3 | Krystian BlezienWelterweight | May 10, 2025 |
| T-4 |  Mateusz Makarowski | 15:00 | 3 | Aymard GuihWelterweight | May 10, 2025 |
| T-4 |  Amin Ayoub | 15:00 | 3 | Mickael LeboutWelterweight | May 10, 2025 |
| T-4 |  Wojciech Kawa | 15:00 | 3 | El Hadji NdiayeWelterweight | Jun 14, 2025 |
| T-4 |   Madars Bertholds-Fleminas | 15:00 | 3 | Tymoteusz LopaczykWelterweight | Sep 20, 2025 |
| T-4 |  Mateusz Pawlik | 15:00 | 3 | Matúš JuráčekWelterweight | Oct 18, 2025 |
| T-4 |  Dawid Kuczmarski | 15:00 | 3 | Krystian KaszubowskiWelterweight | Nov 15, 2025 |
| T-4 |  Amaury Wako-Zabo | 15:00 | 3 | Viktor CervinskyWelterweight | Jan 17, 2026 |
| T-4 | Dawid Kuczmarski | 15:00 | 3 | Daniel SkibinskiWelterweight | Feb 21, 2026 |
| T-4 | Kacper Koziorzebski | 15:00 | 3 | Artur SzczepaniakWelterweight | Feb 21, 2026 |
| T-4 |  Adam Niedzwiedz | 15:00 | 3 | Mateusz PawlikWelterweight | Jul 18, 2026 |
| 28 | Adrian Bartosinski | 14:56 | 3 | Muslim TulshaevWelterweight | Dec 20, 2025 |
| 29 | Adrian Bartosinski | 14:50 | 3 | Igor MichaliszynWelterweight | May 11, 2024 |
| 30 |  Wiktor Zalewski | 14:06 | 3 | Romain DebienneWelterweight | Dec 20, 2025 |
| 31 | Amaury Wako-Zabo | 13:16 | 3 | Kacper FornalskiWelterweight | May 10, 2025 |
| 32 |  Adam Brysz | 9:11 | 2 | Hugo DeuxWelterweight | Jul 20, 2024 |
| 33 | Amaury Wako-Zabo | 8:40 | 2 | Maciej RebaczWelterweight | Dec 20, 2024 |
| 34 |  Igor Michaliszyn | 8:29 | 2 | Krystian BielskiWelterweight | Apr 22, 2023 |
| 35 |   Steven Krt | 7:49 | 2 | Daniel KolasinskiWelterweight | May 16, 2026 |
| 36 |   Muslim Tulshaev | 7:14 | 2 | Marcin KrakowiakWelterweight | Aug 24, 2024 |
| 37 | Madars Bertholds-Fleminas | 6:07 | 2 | Artur SzczepaniakWelterweight | Apr 6, 2024 |
| 38 | Wiktor Zalewski | 5:55 | 2 | Kacper KoziorzebskiWelterweight | Sep 16, 2023 |
| 39 | Oskar Szczepaniak | 4:29 | 1 | Adrian GralakWelterweight | Sep 16, 2023 |
| 40 |  Roman Szymanski | 4:15 | 1 | Kacper FormelaWelterweight | Jun 14, 2025 |
| 41 |  Ramzan Jembiev | 2:58 | 1 | El Hadji NdiayeWelterweight | Dec 20, 2024 |
| 42 |  Konrad Rusinski | 2:44 | 1 | Tagir MachmudovWelterweight | May 16, 2026 |
| 43 |  Artur Szczepaniak | 2:40 | 1 | Igor MichaliszynWelterweight | Apr 26, 2025 |
| 44 |  Igor Wlodarczyk | 2:22 | 1 | Dominik GabnerWelterweight | Jul 19, 2025 |
| 45 | Adrian Bartosinski | 1:47 | 1 | Artur SzczepaniakWelterweight | Apr 22, 2023 |
| 46 | Artur Szczepaniak | 1:40 | 1 | Krystian KaszubowskiWelterweight | Sep 14, 2024 |
| 47 |   Adam Masaev | 1:34 | 1 | Konrad RusinskiWelterweight | Jun 20, 2026 |
| 48 | Dawid Kuczmarski | 1:11 | 1 | Morgann GbolouWelterweight | Jun 7, 2024 |
| 49 | Oskar Szczepaniak | 1:00 | 1 | Michal GniadyWelterweight | Mar 16, 2024 |
| 50 | Wiktor Zalewski | 0:32 | 1 | Adrian ZielinskiWelterweight | Mar 16, 2024 |
| 51 |   Nicolae Bivol | 0:25 | 1 | Adam BryszWelterweight | Nov 16, 2024 |
This board ranks single performances, not fighters — one fighter can hold more than one row.