Sean Monaghan has three losses against three opponents on his boxing record. For a list of Monaghan's best fights, refer to "Best fights of Sean Monaghan".
On March 9, 2019 Sean Monaghan faced off against Callum Johnson at age 37. He was coming in with a record of 29-3 (17), and Johnson was 33 years old and with a record of 17-1 (12). Monaghan lost the fight via 3rd-round TKO.
On November 3, 2018 Sean Monaghan faced off against Sullivan Barrera at age 37. He was coming in with a record of 29-2 (17), and Barrera was 36 years old and with a record of 21-2 (14). Monaghan lost the fight via 10-round unanimous decision.
On July 15, 2017 Sean Monaghan faced off against Marcus Browne at age 36. He was coming in with a record of 28-1 (17), and Browne was 26 years old and with a record of 19-0 (14). Monaghan lost the fight via 2nd-round TKO.
