Jason Black has four losses against four opponents on his MMA record. For a list of Black's best fights, refer to "Best fights of Jason Black".
On October 20, 2007 Jason Black faced off against Matt Grice in a lightweight bout at age 35. He was coming in with a record of 23-4-1 (15), and Grice was 26 years old and with a record of 9-1 (7). Black lost the fight via 3-round split decision.
On June 6, 2007 Jason Black faced off against Thiago Tavares in a lightweight bout at age 34. He was coming in with a record of 23-3-1 (15). Black lost the fight via 2nd-round submission.
On August 26, 2006 Jason Black faced off against Shinya Aoki in a lightweight bout at age 34. He was coming in with a record of 22-2-1 (14), and Aoki was 23 years old and with a record of 7-2 (5). Black lost the fight via 1st-round submission.
On February 17, 2006 Jason Black faced off against Shonie Carter at age 33. He was coming in with a record of 21-1-1 (13), and Carter was 33 years old and with a record of 37-15-7 (17). Black lost the fight via 1st-round TKO.
