Fighter dossier
MK
Official MMA record
Marcin Kosiak
“Psycho”
Professional record
2-3-0
- Division
- Welterweight
- Weight
- 150 lb
- Gender
- Male
Profile summary
Marcin Kosiak is an MMA fighter with a professional record of 2-3-0.
Career file
Professional career statistics
2-3-0
Total fights
5
Rounds fought
0
Current streak
1 L
Finish rate
100%
Win methods
Loss methods
Career length
2y 2m
Fights per year
2.3
Longest layoff
8m 15d
Quickest turnaround
5m 11d
Quick hits
Fastest win
00:00
Fastest KO
00:00
Fastest submission
00:00
Finished rate
100%
Avg. fight length · wins
00:00
Avg. fight length · losses
00:00
Avg. rounds · wins
0
Avg. rounds · losses
0
Official record
Professional fight record
| Date | Result | Opponent | Division | Method / event | Round / time |
|---|---|---|---|---|---|
| Dec 5, 2025 | NC | Corey Healey | Welterweight | No Contest BKB 49: Dance of the Dragons | R5/05:00 |
| Apr 19, 2025 | L | Martin McDonough | — | TKO/RSC BYB Extreme Fighting Series 40: Cardiff Brawl III | R2/05:00 |
| Oct 12, 2024 | W | Sam Jamshidi | — | TKO/RSC BYB Extreme Fighting Series 32 | R3/03:00 |
| Jan 27, 2024 | L | Dan Gittens | — | KO Bare Knuckle Boxing 36 | R3/05:00 |
| Jul 29, 2023 | L | Harvey Dossett | — | TKO/RSC Bare Knuckle Boxing 33 | R1/05:00 |
| Feb 18, 2023 | W | Jack Lawrence | — | TKO/RSC Bad to the Bone: Ireland vs. England | R3/05:00 |