FIGHTSPLIT

Mark Chamberlain

3 stories covering Mark Chamberlain — news, results and analysis.

Floyd Mayweather, one of the boxing legends to have held an IBO world title
Boxing

The IBO Says No to a 'Five-Belt Era' — And Means It

IBO President Ed Levine wants respect, not another belt on the pile — even as world title count has doubled past 136 in 25 years.

Aug 13, 2026

Mark Chamberlain and Pierce O'Leary trade shots at 3Arena in Dublin
Boxing

Mark Chamberlain Stops Pierce O'Leary in a Dublin War for the Ages

The English underdog dropped O'Leary twice early, survived a seventh-round body-shot knockdown, and finished it in the 10th on hostile turf.

Aug 1, 2026

Mark Chamberlain in the ring during a professional boxing bout
Boxing

Mark Chamberlain Breaks Silence on the Illness That Scrapped O'Leary Fight

The Portsmouth southpaw needed an ambulance and a hospital trip before an ECG warned of pneumonia. Now he's ready for Dublin on August 1.

Jul 31, 2026