Upcoming Fight
O'Leary vs. Chamberlain — Aug 1, 2026
View Odds
Tale of the Tape
ChamberlainO'Leary
17-1-1
Record
19-0-0-
Height
5'8"-
Reach
--
Stance
-27
Age
26How They Win
No records
58%
42%
KO
SUB
DEC
Statistical Comparison
No detailed fight statistics available for either fighter.
Head-to-Head Record (0-0)
O'Leary vs. Chamberlain
Aug 1, 2026
upcoming
Frequently Asked Questions
When is Mark Chamberlain vs Pierce O'Leary?
Mark Chamberlain vs Pierce O'Leary is scheduled for August 1, 2026 at O'Leary vs. Chamberlain.
What is Mark Chamberlain's record?
Mark Chamberlain's professional record is 17-1-1.
What is Pierce O'Leary's record?
Pierce O'Leary's professional record is 19-0-0.