Tale of the Tape
ChamberlainO'Leary
18-1-1
Record
19-1-0-
Height
5'8"-
Reach
--
Stance
-27
Age
26How They Win
72%
28%
58%
42%
KO
SUB
DEC
Statistical Comparison
No detailed fight statistics available for either fighter.
Head-to-Head Record (1-0)
O'Leary vs. Chamberlain
Aug 1, 2026
Mark Chamberlain wins
KO/TKO, R10
Frequently Asked Questions
Who won Mark Chamberlain vs Pierce O'Leary?
Mark Chamberlain won their most recent fight by KO/TKO in round 10. They have fought 1 time total (1-0).
What is Mark Chamberlain's record?
Mark Chamberlain's professional record is 18-1-1.
What is Pierce O'Leary's record?
Pierce O'Leary's professional record is 19-1-0.