Standout achievements
Mason Williamson is an American mixed martial artist with a professional record of 8-1 across 9 bouts. They've won 2 by KO/TKO, 1 by submission and 5 by decision — a 38 % finish rate. Most wins come by decision. Currently on a 8-fight win streak. Last competed October 2025 (active). Has fought most often in United States (7 bouts).
Fight locations (1 venues)
Career timeline — fights by year
Frequently asked
What is Mason Williamson's MMA record?
Mason Williamson has a professional MMA record of 8-1 — 2 wins by KO/TKO, 1 by submission, 5 by decision.
How does Mason Williamson usually win?
They most often win by decision (5 of 8 wins).
How does Mason Williamson usually lose?
Most of Mason Williamson's losses come by decision (1 of 1).
Is Mason Williamson still active?
Mason Williamson last competed in October 2025, and is considered active (no bout in over two years).
What is Mason Williamson's fastest finish?
KO/TKO of Justin Gray in 0:28 (Rd 1) at XKO 63 - Xtreme Knockout 63: Summer Bash.
Where is Mason Williamson from?
Mason Williamson is a American mixed martial artist.
What is Mason Williamson's longest MMA win streak?
Mason Williamson's longest winning run on record is 8 straight victories.
Where does Mason Williamson rank in MMA?
Mason Williamson sits at #6,197 of 32,631 fighters in the Fight Forensics global MMA rankings.