Here is a list of Cullen's best fights. For a list of Cullen's losses, refer to "Jack Cullen Losses".
On July 31, 2021 Jack Cullen faced off against Avni Yıldırım in a super-middleweight bout at age 27. He was coming in with a record of 20-2-1 (9), and Yıldırım was 29 years old and with a record of 21-3 (12). Cullen won the fight via 10-round unanimous decision.
