1-1
Pro W–L
Am 0–1
Roman O'Sullivan is mixed martial artist with a professional record of 1-1 across 2 bouts. They've won 0 by KO/TKO, 0 by submission and 1 by decision. Last competed April 2025 (active). Has fought most often in Wales (3 bouts).
Finish rate
0 %
Wins by
0 KO · 0 SUB · 1 DEC
Usually wins by
decision
Usually loses by
KO/TKO
Fastest loss
1:06 (Rd 1)
vs Tyler Smith
Most fights in
Wales 3
Last fought
Apr 2025 · Active
Career timeline — fights by year
Wins
Losses
Frequently asked
What is Roman O'Sullivan's MMA record?
Roman O'Sullivan has a professional MMA record of 1-1 — 0 wins by KO/TKO, 0 by submission, 1 by decision.
How does Roman O'Sullivan usually win?
They most often win by decision (1 of 1 wins).
How does Roman O'Sullivan usually lose?
Most of Roman O'Sullivan's losses come by KO/TKO (1 of 1).
Is Roman O'Sullivan still active?
Roman O'Sullivan last competed in April 2025, and is considered active (no bout in over two years).
Pro MMA (2)
Amateur (1)
Amateur bouts — not counted toward the pro record.