Iwo Baraniewski (8-0, 8) was born in Warsaw, Poland on November 20, 1998. At the age of 24 years on September 30, 2023, he made his professional MMA debut against Kamil Bartosiński, winning the fight via 1st-round submission.
On December 6, 2025, 27-year old Iwo Baraniewski made his UFC debut on his 7th professional MMA fight at UFC 323 against a 29-year old İbo Aslan, winning the fight in the 1st round via KO.
Baraniewski's last fight was a 1st-round TKO win against Austen Lane at UFC Fight Night: Evloev vs. Murphy at age 27 on March 21, 2026. He is currently undefeated and is on a 8-fight winning streak.
He has fought twice in the UFC, and has a record of 2 wins and 0 losses in the promotion.
Some of Iwo Baraniewski's best fights were against İbo Aslan and Austen Lane. For details about these fights refer to "Best fights of Iwo Baraniewski".
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
8  | Mar 21, 2026 27 years, 4 months 8-0 (8) | 38 years, 4 months 13-7 (12) | UFC | LHW | 1 | TKO | Win Punches |
7  | Dec 6, 2025 27 years 7-0 (7) | 29 years, 7 months 14-3 (14) | UFC | LHW | 1 | KO | Win Punches |
6 | Sep 16, 2025 26 years, 9 months 6-0 (6) | Mahamed Aly | LHW | 1 | KO | Win Punches | |
5 | Mar 14, 2025 26 years, 3 months 5-0 (5) | Kamil Stachura | LHW | 1 | TKO | Win Elbows and punches | |
4 | Nov 22, 2024 26 years 4-0 (4) | Sylwester Borys | LHW | 1 | TKO | Win Punches | |
3 | Sep 28, 2024 25 years, 10 months 3-0 (3) | Cemey dos Santos | LHW | 1 | TKO | Win Punches | |
2 | Jan 27, 2024 25 years, 2 months 2-0 (2) | Miroslav Uchytil | LHW | 1 | SUB | Win Armbar | |
1 | Sep 30, 2023 24 years, 10 months 1-0 (1) | Kamil Bartosiński | LHW | 1 | SUB | Win Armbar |
