Briton Mark Chamberlain delivered a stunning performance in Dublin, securing a 10th-round knockout victory over Pierce O'Leary to claim the IBO light-welterweight belt. Chamberlain dropped O'Leary twice earlier in the fight, once in the first round and again in the second, before finding the decisive stoppage late on.
The fight saw dramatic swings in momentum, with Chamberlain himself hitting the canvas in the seventh round after a powerful body shot from O'Leary. However, Chamberlain recovered and ultimately found a breakthrough in the 10th round, landing a combination that led to O'Leary's final knockdown.
This victory marks a significant return to winning ways for Portsmouth's Chamberlain, who now boasts 18 wins and one defeat. It is his first win since 2024 and follows a draw last summer.
In the chief support bout, British and Commonwealth super-featherweight champion Royston Barney-Smith outclassed fellow Briton Reece Bellotti over 10 rounds. The 22-year-old from Southampton secured the vacant IBO intercontinental belt, extending his undefeated professional record to 17 wins.