Michał Oleksiejczuk (21-9, 17) was born in Łęczna, Poland on February 22, 1995. At the age of 18 years on January 11, 2014, he made his professional MMA debut against Rajmund Flejmer, winning the fight via 2-round unanimous decision.
On December 30, 2017, 22-year old Michał Oleksiejczuk made his UFC debut on his 15th professional MMA fight at UFC 219 against a 27-year old Khalil Rountree Jr. but lost the fight via no contest.
Oleksiejczuk's last fight was a 1st-round TKO win against Gerald Meerschaert at UFC 319 at age 30 on August 16, 2025. He is on a 2-fight winning streak.
He has fought 17 times in the UFC, and has a record of 9 wins, 7 losses and 1 no-contest in the promotion.
Some of Michał Oleksiejczuk's best fights have been against Gian Villante, Cody Brundage, Chidi Njokuani, Gadzhimurad Antigulov, Shamil Gamzatov, Sam Alvey and Gerald Meerschaert.
Oleksiejczuk has 9 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
31  | Aug 16, 2025 30 years, 5 months 21-9 (17) | 37 years, 7 months 37-19 (31) | UFC | MD | 1 | TKO | WIN Punches |
30 | Apr 12, 2025 30 years, 1 months 20-9 (16) | Sedriques Dumas | UFC | MD | 1 | TKO | WIN Punches and elbows |
29  | Aug 3, 2024 29 years, 5 months 19-9 (15) | 30 years, 2 months 13-0 (11) | UFC | MD | 3 | UD | LOSS |
28  | Jun 1, 2024 29 years, 3 months 19-8 (15) | 31 years, 6 months 25-11 (21) | UFC | MD | 1 | CKO | LOSS Armbar |
27  | Mar 9, 2024 29 years 19-7 (15) | 30 years, 5 months 29-11 (17) | UFC | MD | 1 | CKO | LOSS Rear-naked choke |
26  | Aug 26, 2023 28 years, 6 months 19-6 (15) | 34 years, 7 months 22-9 (15) | UFC | MD | 1 | TKO | WIN Punches |
25  | Apr 29, 2023 28 years, 2 months 18-6 (14) | 30 years, 3 months 13-1 (7) | UFC | MD | 2 | SUB | LOSS Rear-naked choke |
24  | Dec 17, 2022 27 years, 9 months 18-5 (14) | 28 years, 7 months 8-2 (7) | UFC | MD | 1 | KO | WIN Punches |
23  | Aug 6, 2022 27 years, 5 months 17-5 (13) | 36 years, 3 months 33-17-1 (22) | UFC | MD | 1 | TKO | WIN Punches |
22  | Mar 5, 2022 27 years 16-5 (12) | 33 years, 11 months 16-5-1 (11) | UFC | LHW | 3 | UD | LOSS |
21  | Oct 30, 2021 26 years, 8 months 16-4 (12) | 31 years, 2 months 14-0 (10) | UFC | LHW | 1 | TKO | WIN Punches |
20  | Mar 27, 2021 26 years, 1 months 15-4 (11) | 27 years, 1 months 11-3 (9) | UFC | LHW | 3 | SD | WIN |
19  | Feb 23, 2020 25 years 14-4 (11) | 23 years, 11 months 10-1 (7) | UFC | LHW | 1 | SUB | LOSS Kimura |
18  | Sep 28, 2019 24 years, 7 months 14-3 (11) | 36 years, 5 months 23-13 (16) | UFC | LHW | 2 | SUB | LOSS Von flue choke |
17  | Apr 20, 2019 24 years, 1 months 14-2 (11) | 32 years, 3 months 20-5 (19) | UFC | LHW | 1 | KO | WIN Punch |
16  | Feb 23, 2019 24 years 13-2 (10) | 33 years, 6 months 17-10 (12) | UFC | LHW | 1 | TKO | WIN Punches |
15  | Dec 30, 2017 22 years, 10 months 12-2 (9) | 27 years, 10 months 6-2 (4) | UFC | LHW | 3 | NC | NC Overturned |
14 | May 12, 2017 22 years, 2 months 12-2 (9) | Riccardo Nosiglia | LHW | 1 | KO | WIN Punches | |
13 | Apr 1, 2017 22 years, 1 months 11-2 (8) | Charles Andrade | LHW | 1 | KO | WIN Punch | |
12 | Nov 19, 2016 21 years, 8 months 10-2 (7) | Łukasz Klinger | LHW | 1 | TKO | WIN Punches | |
11 | May 20, 2016 21 years, 2 months 9-2 (6) | Wojciech Janusz | LHW | 3 | UD | WIN | |
10 | Jan 16, 2016 20 years, 10 months 8-2 (6) | Łukasz Borowski | LHW | 2 | SUB | WIN Rear-naked choke | |
9 | Sep 26, 2015 20 years, 7 months 7-2 (5) | Michal Dobiaš | LHW | 2 | KO | WIN Kick to the body | |
8 | Sep 26, 2015 20 years, 7 months 6-2 (4) | Andrejs Zozulja | LHW | 1 | KO | WIN Punches | |
7 | May 2, 2015 20 years, 2 months 5-2 (3) | Tomasz Janiszewski | LHW | 2 | TKO | WIN Strikes | |
6 | Jan 24, 2015 19 years, 11 months 4-2 (2) | Seweryn Kirschhiebel | LHW | 2 | TKO | WIN Corner stoppage | |
5 | Nov 21, 2014 19 years, 8 months 3-2 (1) | Marcin Wójcik | LHW | 1 | TKO | LOSS Punches | |
4 | Jun 20, 2014 19 years, 3 months 3-1 (1) | Norbert Piskorski | MD | 1 | TKO | WIN Leg injury | |
3 | May 17, 2014 19 years, 2 months 2-1 (0) | Jan Kwiatoń | MD | 1 | SUB | LOSS Triangle choke | |
2 | Feb 8, 2014 18 years, 11 months 2-0 (0) | Mateusz Gola | MD | 3 | UD | WIN | |
1 | Jan 11, 2014 18 years, 10 months 1-0 (0) | Rajmund Flejmer | MD | 2 | UD | WIN |
