2-0
Pro W–L
William Clasen is mixed martial artist with a professional record of 2-0 across 2 bouts. They've won 1 by KO/TKO, 1 by submission and 0 by decision — a 100 % finish rate. Currently on a 2-fight win streak. Last competed February 2025 (active).
Finish rate
100 %
Wins by
1 KO · 1 SUB · 0 DEC
Current streak
W2
Usually wins by
KO/TKO
Fastest win
6:04 (Rd 2)
vs William Magalhaes
Last fought
Feb 2025 · Active
Career timeline — fights by year
Wins
Losses
Frequently asked
What is William Clasen's MMA record?
William Clasen has a professional MMA record of 2-0 — 1 wins by KO/TKO, 1 by submission, 0 by decision.
How does William Clasen usually win?
They most often win by KO/TKO (1 of 2 wins).
Is William Clasen still active?
William Clasen last competed in February 2025, and is considered active (no bout in over two years).
What is William Clasen's fastest finish?
submission of William Magalhaes in 6:04 (Rd 2) at FMS - Fight Music Show: Fight Night 4.
What is William Clasen's longest MMA win streak?
William Clasen's longest winning run on record is 2 straight victories.