Jeff Horn has three losses against three opponents on his boxing record. For a list of Horn's best fights, refer to "Best fights of Jeff Horn".
On August 26, 2020 Jeff Horn faced off against Tim Tszyu in a super-welterweight bout at age 32. He was coming in with a record of 20-3-1 (13), and Tszyu was 25 years old and with a record of 15-0 (11). Horn lost the fight via 8th-round TKO.
On August 31, 2019 Jeff Horn faced off against Michael Zerafa in a middleweight bout at age 31. He was coming in with a record of 19-2-1 (13), and Zerafa was 27 years old and with a record of 26-3 (15). Horn lost the fight via 9th-round TKO.
On June 9, 2018 Jeff Horn met Terence Crawford in a welterweight (WBO) world-title defense fight. Horn was 30 years old and with a record of 18-1-1 (12), and Crawford was 30 years old and with a record of 32-0 (23). Horn lost the fight via 9th-round TKO and lost the title.