BOXING
O'Leary vs. Chamberlain
Dublin, IrelandAug 1, 2026, 6:00 PM UTC· 6:00 PM UTC1 fights · 0 sportsbooks
Pierce O'Leary
19-0
vs
Mark Chamberlain
17-1-1
O'Leary vs. Chamberlain features 1 fight. Main event: Pierce O'Leary vs Mark Chamberlain. August 1, 2026. Compare betting odds across 15+ sportsbooks for every fight on the card.
Full Fight Card
| Fighter |  |  |
|---|---|---|
MAIN CARD · 6:00 PM UTC | ||
MAIN CARD · 6:00 PM UTC | ||
 | - | -140 |
 | - | +110 |