John McCallum losses
Over 11 years as a professional, John McCallum has compiled a 13-2 (0) record, including one title fight. He has two losses, one of them in a title fight.
2. John McCallum loses to Evgeny Tishchenko via KO
On November 7, 2020 John McCallum fought Evgeny Tishchenko for the vacant WBO European cruiserweight title. McCallum was 32 years old with a record of 12-1, and Tishchenko was 0 with a record of 0-0. McCallum was on a 5-fight winning streak. Tishchenko stopped McCallum via KO in the 2nd round. Failed to win the vacant title.
1. John McCallum loses to Leon McKenzie via KO
On October 17, 2015 John McCallum faced Leon McKenzie. McCallum was 27 years old with a record of 7-0, and McKenzie was 0 with a record of 0-0. McCallum was on an undefeated 7-fight winning streak. McKenzie stopped McCallum via retirement in the 6th round.