On June 15, 2024, a 30-year-old Isaac Chamberlain (16-2, 8 KOs) and a 31-year-old fellow British boxer Jack Massey (21-2, 12 KOs) met in the ring in a cruiserweight bout.
Chamberlain came in to the fight on a 2-fight win streak with a 44% KO rate, and was fighting after a gap of 7 months and 25 days. Massey was on a 1-fight win streak with a 52% KO rate, and fighting after a layoff of 4 months and 26 days.
Jack Massey defeated Isaac Chamberlain via unanimous decision in the 12-round cruiserweight fight. Massey improves his record to 22-2, while Chamberlain adds a loss to his record at 16-3.
On July 30, 2022, a 28-year-old Isaac Chamberlain (14-1, 8 KOs) and a 31-year-old English boxer Chris Billam-Smith (15-1, 11 KOs) met in the ring in a cruiserweight bout.
Chamberlain came in to the fight on a 5-fight win streak with a 53% KO rate, and was fighting after a gap of 7 months and 18 days. Billam-Smith was on a 6-fight win streak with a 68% KO rate, and fighting after a layoff of 3 months and 14 days.
Chris Billam-Smith defeated Isaac Chamberlain via unanimous decision in the 12-round cruiserweight fight. Billam-Smith improves his record to 16-1, while Chamberlain adds a loss to his record at 14-2.
On February 3, 2018, a 23-year-old Isaac Chamberlain (9-0, 4 KOs) and a 25-year-old fellow British boxer Lawrence Okolie (7-0, 6 KOs) met in the ring in a cruiserweight bout.
Chamberlain came in to the fight on a 9-fight win streak with a 44% KO rate, and was fighting after a gap of 3 months and 21 days. Okolie was on a 7-fight win streak with a 85% KO rate, and fighting after a layoff of 1 month and 21 days.
Lawrence Okolie defeated Isaac Chamberlain via unanimous decision in the 10-round cruiserweight fight. Okolie improves his record to 8-0, while Chamberlain adds a loss to his record at 9-1.