1-3
Pro W–L
Standout achievements
William Petrovich is an American mixed martial artist with a professional record of 1-3 across 4 bouts. They've won 1 by KO/TKO, 0 by submission and 0 by decision — a 100 % finish rate. Currently on a 3-fight skid. Last competed June 2026 (active). Has fought most often in United States (3 bouts).
Finish rate
100 %
Wins by
1 KO · 0 SUB · 0 DEC
Current streak
L3
Usually wins by
KO/TKO
Usually loses by
KO/TKO
Fastest win
2:44 (Rd 1)
vs Tony Williams
Fastest loss
2:08 (Rd 1)
vs Corbin Johnson
Most fights in
United States 3
Last fought
Jun 2026 · Active
Career timeline — fights by year
Wins
Losses
Frequently asked
What is William Petrovich's MMA record?
William Petrovich has a professional MMA record of 1-3 — 1 wins by KO/TKO, 0 by submission, 0 by decision.
How does William Petrovich usually win?
They most often win by KO/TKO (1 of 1 wins).
How does William Petrovich usually lose?
Most of William Petrovich's losses come by KO/TKO (2 of 3).
Is William Petrovich still active?
William Petrovich last competed in June 2026, and is considered active (no bout in over two years).
What is William Petrovich's fastest finish?
KO/TKO of Tony Williams in 2:44 (Rd 1) at MTF 44 - Mountain Force 44.
Where is William Petrovich from?
William Petrovich is a American mixed martial artist.