Mark Chamberlain beats Pierce O'Leary by KO in round 10 on 2 August 2026
Mark Chamberlain stopped Pierce O'Leary by knockout in the tenth round at their lightweight/" class="internal-link text-bone underline decoration-ash/30 hover:decoration-gold underline-offset-2">super-lightweight clash. Chamberlain's power told as the contest wore on, securing the finish and moving to 1-0 with one knockout. O'Leary drops to 0-1 after being unable to withstand the late assault.
How it ended
The end came in round ten when Chamberlain landed the decisive blow. O'Leary could not continue, and the referee waved off the contest. The knockout marked Chamberlain's first professional win and demonstrated his finishing ability over the championship distance.
Updated records
- Pierce O'Leary — 0-1
- Mark Chamberlain — 1-0 (1 KO)
What's next
Chamberlain enters the lightweight/" class="internal-link text-bone underline decoration-ash/30 hover:decoration-gold underline-offset-2">super-lightweight picture with a statement knockout on his record. O'Leary will look to regroup after the stoppage loss, his first professional defeat. Both fighters now face decisions about their next steps in a competitive domestic division.
Frequently asked questions
Who won Pierce O'Leary vs Mark Chamberlain?
Mark Chamberlain defeated Pierce O'Leary by KO in round 10 at Pierce O'Leary v Mark Chamberlain.
How did Pierce O'Leary vs Mark Chamberlain end?
The fight ended by KO in round 10.
What's Mark Chamberlain's record now?
Mark Chamberlain now stands at 1-0 (1 KO).
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