Jason Jackson has six losses against six opponents on his MMA record. For a list of Jackson's best fights, refer to "Best fights of Jason Jackson".
On June 12, 2025 Jason Jackson faced off against Thad Jean in a welterweight bout at age 34. He was coming in with a record of 19-6 (9), and Jean was 26 years old and with a record of 9-0 (6). Jackson lost the fight via 3-round split decision.
On June 22, 2024 Jason Jackson met Ramazan Kuramagomedov in a welterweight (Bellator World Championship) title defense fight. Jackson was 33 years old and with a record of 18-5 (9), and Kuramagomedov was 27 years old and with a record of 12-0 (8). Jackson lost the fight via 5-round unanimous decision and lost the title.
On October 25, 2019 Jason Jackson faced off against Ed Ruth in a welterweight bout at age 28. He was coming in with a record of 10-4 (7), and Ruth was 29 years old and with a record of 7-1 (6). Jackson lost the fight via 3-round split decision.
On July 25, 2017 Jason Jackson faced off against Kyle Stewart in a welterweight bout at age 26. He was coming in with a record of 7-3 (5). Jackson lost the fight via 2nd-round TKO.
On October 12, 2013 Jason Jackson faced off against Hayder Hassan at age 22. He was coming in with a record of 3-2 (3), and Hassan was 30 years old and with a record of 4-1 (3). Jackson lost the fight via 3rd-round TKO.
On June 22, 2012 Jason Jackson faced off against Colby Covington at age 21. He was coming in with a record of 1-1 (1), and Covington was 24 years old and with a record of 2-0 (2). Jackson lost the fight via 3-round unanimous decision.
