Here is a list of Wallin's best fights. For a list of Wallin's losses, refer to "Otto Wallin Losses".
On September 30, 2023 Otto Wallin faced off against Murat Gassiev in a heavyweight bout at age 32. He was coming in with a record of 26-1 (14), and Gassiev was 29 years old and with a record of 30-1 (23). Wallin won the fight via 12-round split decision.
On February 20, 2021 Otto Wallin faced off against Dominic Breazeale in a heavyweight bout at age 30. He was coming in with a record of 22-1 (14), and Breazeale was 35 years old and with a record of 20-2 (18). Wallin won the fight via 12-round unanimous decision.
On May 26, 2022 Otto Wallin faced off against Rydell Booker in a heavyweight bout at age 31. He was coming in with a record of 24-1 (14), and Booker was 41 years old and with a record of 26-5-1 (13). Wallin won the fight via 10-round unanimous decision.
