Pierce O’Leary vs Mark Chamberlain

Name: O'Leary vs Chamberlain
Start: 2026-08-01T12:00:00-04:00
End: 2026-08-01T20:00:00-04:00
Location: 3Arena

O'Leary vs Chamberlain at 3Arena in Dublin, Ireland

Pierce O’Leary defends his IBO super lightweight title against Mark Chamberlain at Dublin’s 3Arena.

Tickets for the event can be purchased via Ticketmaster.

Pierce O’Leary (19-0, 11 KOs) vs Mark Chamberlain (17-1-1, 12 KOs), 12 rounds, O’Leary’s IBO super lightweight title

*Card, ticket and broadcast information subject to change

August 1, 2026

3Arena - N Wall Quay, North Dock, Dublin 1, Ireland