Here is a list of Walsh's best fights.
On August 26, 2023 Callum Walsh faced off against Juan Jose Velasco in a super-welterweight bout at age 22. He was coming in with a record of 8-0 (7), and Velasco was 36 years old and with a record of 24-4 (15). Walsh stopped Juan Jose Velasco via retirement.
On September 20, 2024 Callum Walsh faced off against Przemyslaw Runowski in a super-welterweight bout at age 23. He was coming in with a record of 12-0 (10), and Runowski was 30 years old and with a record of 22-2-1 (6). Walsh stopped Przemyslaw Runowski via KO.
On March 16, 2025 Callum Walsh faced off against Dean Sutherland in a super-welterweight bout at age 24. He was coming in with a record of 13-0 (11), and Sutherland was 26 years old and with a record of 19-1 (7). Walsh stopped Dean Sutherland via KO.
On June 7, 2024 Callum Walsh faced off against Carlos Ortiz Cervantes in a super-welterweight bout at age 23. He was coming in with a record of 11-0 (9). Walsh stopped Carlos Ortiz Cervantes via TKO.
