11
11
Wins
5
Losses
0
Draws
91%
Finish Rate
5
KO / TKO
5
Submissions
2011
Pro Debut
Biography
Mariusz Książkiewicz is a German-born Polish-Canadian professional mixed martial artist. He currently competes in the Light Heavyweight division for Konfrontacja Sztuk Walki. He is a former Unified MMA and Ignite Fights Light Heavyweight champion. He previously competed on Aggression Fighting Championship, Legacy Fighting Alliance, and Dana White's Contender Series.
UFC Stats
Official · ufc.comStriking accuracy45%
Takedown accuracy100%
0.93
/ min
Sig. strikes landed
3.4
/ min
Sig. strikes absorbed
4
/ 15 min
Takedowns
2
avg
Submissions
0
avg
Knockdowns
UFC debut Jun. 20, 2026Born Germany
How He Wins
KO / TKO5
Decision0
Submission5
Finish Rate
91%
10 of 11
wins by finish
wins by finish
Recent Form
W
W
W
W
L
W
W
L
W
L
Mixed Martial Arts16 Bouts
| Result | Opponent | Method | Rd | Event | Date |
|---|---|---|---|---|---|
| Loss |  Sergiusz ZającH2H | TKO (knee injury) | R1 | KSW 110 | Sep 20, 2025 |
| Loss | Sergiusz ZającH2H | KO (punches) | R1 | XTB KSW 109: Kuberski vs. Paczuski | Aug 9, 2025 |
| Loss | Sergiusz ZającH2H | KO (punches) | R1 | XTB KSW 102: Przybysz vs. Azevedo | Jan 25, 2025 |
| Win |  Rafael CarvalhoH2H | KO (punches) | R4 | Ignite Fights: Iowa Fight Series 2 | Apr 13, 2024 |
| Loss |  Eli AronovH2H | Submission (arm-triangle choke) | R2 | Unified MMA 45 | May 27, 2022 |
| Win | Alessandro GambulinoH2H | TKO (knee to the body and punches) | R1 | LFA 130 | Apr 22, 2022 |
| Win |  Graham ParkH2H | TKO (punches) | R1 | Unified MMA 42 | Dec 17, 2021 |
| Loss | Mário SousaH2H | Decision (unanimous) | R3 | Dana White's Contender Series 35 | Nov 10, 2020 |
| Win | Guilherme MirandaH2H | Submission (rear-naked choke) | R1 | Teofista: Fight For The Troops | Nov 9, 2019 |
| Win | Jo Vallée | Submission (rear-naked choke) | R3 | TKO Fight Night 1 | Aug 2, 2018 |
| Win |  Douglas McFreshH2H | TKO (elbows) | R1 | Alaska FC 126 | Oct 19, 2016 |
| Win | Micah BrakefieldH2H | TKO (doctor stoppage) | R2 | Prestige FC 2 | Mar 12, 2016 |
| Win | Steve DubeckH2H | Submission (rear-naked choke) | R2 | KOTC: Out Cold | Nov 15, 2013 |
| Win | Ash MashreghiH2H | Submission (rear-naked choke) | R1 | Aggression FC 16 | Mar 23, 2013 |
| Win |  Dejan KajićH2H | Decision (unanimous) | R3 | Aggression FC 11 | Sep 15, 2012 |
| Win | Henry RowsellH2H | Submission (rear-naked choke) | R1 | Cage Fighting Manitoba 2 | May 13, 2011 |
Related Fighters
Data sourced from public records for archival/research purposes.