Gegard Mousasi has nine losses against nine opponents on his MMA record. For a list of Mousasi's best fights, refer to "Best fights of Gegard Mousasi".
On May 12, 2023 Gegard Mousasi faced off against Fabian Edwards in a middleweight bout at age 37. He was coming in with a record of 49-9-2 (40), and Edwards was 30 years old and with a record of 11-2 (7). Mousasi lost the fight via 5-round unanimous decision.
On June 24, 2022 Gegard Mousasi met Johnny Eblen in a middleweight (Bellator World Championship) title defense fight. Mousasi was 36 years old and with a record of 49-8-2 (40), and Eblen was 30 years old and with a record of 11-0 (6). Mousasi lost the fight via 5-round unanimous decision and lost the title.
On June 22, 2019 Gegard Mousasi met Rafael Lovato Jr. in a middleweight (Bellator World Championship) title defense fight. Mousasi was 33 years old and with a record of 45-7-2 (38), and Lovato Jr. was 35 years old and with a record of 9-0 (8). Mousasi lost the fight via 5-round majority decision and lost the title.
On September 27, 2015 Gegard Mousasi faced off against Uriah Hall in a middleweight bout at age 30. He was coming in with a record of 37-6-2 (32), and Hall was 31 years old and with a record of 11-5 (9). Mousasi lost the fight via 2nd-round TKO.
On September 5, 2014 Gegard Mousasi faced off against Ronaldo Souza in a middleweight bout at age 29. He was coming in with a record of 35-5-2 (31), and Souza was 34 years old and with a record of 20-3 (14). Mousasi lost the fight via 3rd-round submission.
On February 15, 2014 Gegard Mousasi faced off against Lyoto Machida in a middleweight bout at age 28. He was coming in with a record of 34-4-2 (30), and Machida was 35 years old and with a record of 20-4 (10). Mousasi lost the fight via 5-round unanimous decision.
On April 17, 2010 Gegard Mousasi met Muhammed Lawal in a light-heavyweight (Strikeforce Championship) title defense fight. Mousasi was 24 years old and with a record of 28-3-1 (26), and Lawal was 29 years old and with a record of 6-0 (5). Mousasi lost the fight via 5-round unanimous decision and lost the title.
On August 26, 2006 Gegard Mousasi faced off against Akihiro Gono in a welterweight bout at age 21. He was coming in with a record of 13-2-1 (13), and Gono was 31 years old and with a record of 26-11-7 (12). Mousasi lost the fight via 2nd-round submission.
On February 28, 2005 Gegard Mousasi faced off against Petras Markevicius in a middleweight bout at age 19. He was coming in with a record of 5-1-1 (5). Mousasi lost the fight via 2nd-round submission.