2-1
Pro W–L
Standout achievements
William Mack is an American mixed martial artist with a professional record of 2-1 across 3 bouts. They've won 1 by KO/TKO, 1 by submission and 0 by decision — a 100 % finish rate. Last competed February 2026 (active). Has fought most often in United States (2 bouts).
Finish rate
100 %
Wins by
1 KO · 1 SUB · 0 DEC
Usually wins by
submission
Usually loses by
KO/TKO
Fastest win
0:39 (Rd 1)
vs Andres Garcia
Fastest loss
0:56 (Rd 1)
vs Rysan Leong
Most fights in
United States 2
Last fought
Feb 2026 · Active
Fight locations (1 venues)
Career timeline — fights by year
Wins
Losses
Frequently asked
What is William Mack's MMA record?
William Mack has a professional MMA record of 2-1 — 1 wins by KO/TKO, 1 by submission, 0 by decision.
How does William Mack usually win?
They most often win by submission (1 of 2 wins).
How does William Mack usually lose?
Most of William Mack's losses come by KO/TKO (1 of 1).
Is William Mack still active?
William Mack last competed in February 2026, and is considered active (no bout in over two years).
What is William Mack's fastest finish?
KO/TKO of Andres Garcia in 0:39 (Rd 1) at Dragon House MMA - Zhong Luo Cage Fighting Series 12.
Where is William Mack from?
William Mack is a American mixed martial artist.
Pro MMA (3)
L
2025-05-17
vs
Rysan Leong
Fight Night San Jose - Fight Night San Jose 3
· Fight Night San Jose
R1 0:56