Jack Hermansson has nine losses against nine opponents on his MMA record. For a list of Hermansson's best fights, refer to "Best fights of Jack Hermansson".
On June 28, 2025 Jack Hermansson faced off against Gregory Rodrigues in a middleweight bout at age 37. He was coming in with a record of 24-9 (17), and Rodrigues was 33 years old and with a record of 16-6 (13). Hermansson lost the fight via 1st-round KO.
On December 3, 2022 Jack Hermansson faced off against Roman Dolidze in a middleweight bout at age 34. He was coming in with a record of 23-8 (17), and Dolidze was 34 years old and with a record of 11-1 (9). Hermansson lost the fight via 2nd-round TKO.
On February 5, 2022 Jack Hermansson faced off against Sean Strickland in a middleweight bout at age 33. He was coming in with a record of 22-7 (17), and Strickland was 30 years old and with a record of 24-3 (14). Hermansson lost the fight via 5-round split decision.
On December 5, 2020 Jack Hermansson faced off against Marvin Vettori in a middleweight bout at age 32. He was coming in with a record of 21-6 (17), and Vettori was 27 years old and with a record of 15-4-1 (11). Hermansson lost the fight via 5-round unanimous decision.
On September 28, 2019 Jack Hermansson faced off against Jared Cannonier in a middleweight bout at age 31. He was coming in with a record of 20-5 (16), and Cannonier was 35 years old and with a record of 12-4 (10). Hermansson lost the fight via 2nd-round TKO.
On October 28, 2017 Jack Hermansson faced off against Thiago Santos in a middleweight bout at age 29. He was coming in with a record of 16-4 (13), and Santos was 33 years old and with a record of 15-5 (11). Hermansson lost the fight via 1st-round TKO.
On November 19, 2016 Jack Hermansson faced off against Cezar Ferreira in a middleweight bout at age 28. He was coming in with a record of 14-3 (11), and Ferreira was 31 years old and with a record of 10-5 (4). Hermansson lost the fight via 2nd-round submission.
On March 21, 2013 Jack Hermansson faced off against Jason Butcher in a middleweight bout at age 24. He was coming in with a record of 5-2 (5), and Butcher was 28 years old and with a record of 5-0 (5). Hermansson lost the fight via 1st-round submission.
On December 14, 2012 Jack Hermansson faced off against Daniel Vizcaya in a middleweight bout at age 24. He was coming in with a record of 5-1 (5). Hermansson lost the fight via 3-round split decision.
