Alexander O'Sullivan is an Irish mixed martial artist with a professional record of 5-1 across 6 bouts. They've won 1 by KO/TKO, 2 by submission and 2 by decision — a 60 % finish rate. Most wins come by decision. Last competed June 2026 (active). Has fought most often in Ireland (10 bouts).
Fight locations (9 venues)
Career timeline — fights by year
Frequently asked
What is Alexander O'Sullivan's MMA record?
Alexander O'Sullivan has a professional MMA record of 5-1 — 1 wins by KO/TKO, 2 by submission, 2 by decision.
How does Alexander O'Sullivan usually win?
They most often win by decision (2 of 5 wins).
How does Alexander O'Sullivan usually lose?
Most of Alexander O'Sullivan's losses come by KO/TKO (1 of 1).
Is Alexander O'Sullivan still active?
Alexander O'Sullivan last competed in June 2026, and is considered active (no bout in over two years).
What is Alexander O'Sullivan's fastest finish?
submission of Afrim Thaqi in 1:18 (Rd 1) at CW 153 - Cage Warriors 153: Dublin.
Where is Alexander O'Sullivan from?
Alexander O'Sullivan is a Irish mixed martial artist.
What is Alexander O'Sullivan's longest MMA win streak?
Alexander O'Sullivan's longest winning run on record is 5 straight victories.
Pro MMA (6)
Amateur (27)
Amateur bouts — not counted toward the pro record.