Adrian Bartosiński (16-1, 13) was born in Rawa Mazowiecka, Poland on August 26, 1995. At the age of 22 years on March 23, 2018, he made his professional MMA debut against Wojciech Żuchnik, winning the fight via 3-round unanimous decision.
Bartosiński's last fight was a welterweight (KSW Championship) title defense against Andrzej Grzebyk on April 26, 2025. He won the fight via 5th-round unanimous decision and successfully defended the title. He is on a 1-fight winning streak.
Some of Adrian Bartosiński's best fights have been against Igor Michaliszyn.
Bartosiński has 1 loss on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
17 | Apr 26, 2025 29 years, 8 months 16-1 (13) | Andrzej Grzebyk | KSW | WL | 5 | UD | WIN Defended KSW welterweight title |
16  | Nov 16, 2024 29 years, 2 months 15-1 (13) | 44 years, 3 months 37-8-2 (32) | KSW | MD | 2 | SUB | LOSS Armbar |
15  | May 11, 2024 28 years, 8 months 15-0 (13) | 28 years 10-2 (7) | KSW | WL | 3 | SUB | WIN Kneebar Defended KSW welterweight title |
14 | Dec 16, 2023 28 years, 3 months 14-0 (12) | Salahdine Parnasse | KSW | WL | 5 | UD | WIN Defended KSW welterweight title |
13 | Apr 22, 2023 27 years, 7 months 13-0 (12) | Artur Szczepaniak | KSW | WL | 1 | TKO | WIN Punches Won KSW welterweight title |
12 | Nov 12, 2022 27 years, 2 months 12-0 (11) | Krystian Kaszubowski | KSW | WL | 1 | TKO | WIN Elbows and punches |
11 | Feb 26, 2022 26 years, 6 months 11-0 (10) | Andrzej Grzebyk | KSW | WL | 2 | SUB | WIN Kneebar |
10 | Jul 17, 2021 25 years, 10 months 10-0 (9) | Michał Michalski | KSW | WL | 1 | TKO | WIN Punches |
9 | Mar 20, 2021 25 years, 6 months 9-0 (8) | Lionel Padilla | KSW | WL | 3 | TKO | WIN Punches |
8 | Apr 17, 2020 24 years, 7 months 8-0 (7) | Piotr Walawski | KSW | MD | 3 | TKO | WIN Punch |
7 | Mar 20, 2020 24 years, 6 months 7-0 (6) | Kamil Dołgowski | KSW | MD | 1 | TKO | WIN Doctor stoppage |
6 | Dec 6, 2019 24 years, 3 months 6-0 (5) | Konstantin Linnik | MD | 1 | TKO | WIN Elbows | |
5 | Oct 12, 2019 24 years, 1 months 5-0 (4) | Krystian Bielski | MD | 2 | TKO | WIN Punches | |
4 | Jul 5, 2019 23 years, 10 months 4-0 (3) | Alexander Shingarenko | MD | 1 | TKO | WIN Punches | |
3 | Apr 6, 2019 23 years, 7 months 3-0 (2) | Vladislav Schepanskyi | MD | 1 | TKO | WIN Doctor stoppage | |
2 | Sep 22, 2018 23 years 2-0 (1) | Jarosław Lech | MD | 2 | TKO | WIN Punches | |
1 | Mar 23, 2018 22 years, 6 months 1-0 (0) | Wojciech Żuchnik | MD | 3 | UD | WIN |
