Review by AllTheBestFights.com: 2026-08-01, we are going to comment and rate the boxing match Pierce O’Leary vs Mark Chamberlain as soon as we watch the full fight (take a look at our ranking of the Best Boxing Fights of 2026).Chamberlain vs O’Leary is scheduled to take place Saturday, August 1st, at the 3Arena in Dublin (Ireland), in a 12-round light welterweight (140 lbs, 63.5 kg) bout; it is the main event of the evening and it is valid for the IBO world super-lightweight title. Watch the video and rate this fight!
Pierce O’Leary record
The undefeated Pierce O’Leary entered this fight with a perfect boxing record of 19-0-0 (11 knockouts) and he is ranked as the No.11 light welterweight in the world.
In his last three fights he has won over Liam Dillon, Braian Esequiel Ronner and Maxi Hughes.
Mark Chamberlain record
His opponent, Mark Chamberlain, has an official record of 17-1-1 (12 knockouts) and he entered as the No.30 in the light welterweight division.
In his last three bouts he has lost to Josh Padley, has beat Miguel Angel Scaringi and has tied with Jack Rafferty (Jack Rafferty vs Mark Chamberlain).
Pre-fight press conference
Watch for free the pre-fight press conference video, featuring Mark Chamberlain and Pierce O’Leary, from the official DAZN Boxing Youtube channel!
Weigh-in
Watch the video of O’Leary vs Chamberlain weigh-in from the official Frank Warren’s Queensberry Promotions Youtube channel!
Full fight video / highlights
Here we are going to post a selection of the best videos about the bout Pierce O’Leary vs Mark Chamberlain as soon as the match ends. If you have seen the full fight you can rate it at the bottom of this post. (All videos are hosted on free video platforms such as Youtube, Dailymotion, Facebook, etc. and not uploaded by AllTheBestFights.com)
Result
Who won O’Leary vs Chamberlain fight?
Mark Chamberlain defeated Pierce O’Leary via TKO at 1:37, round 10.
