Mansour Barnaoui has seven losses against seven opponents on his MMA record. For a list of Barnaoui's best fights, refer to "Best fights of Mansour Barnaoui".
On June 20, 2025 Mansour Barnaoui faced off against Archie Colgan in a lightweight bout at age 32. He was coming in with a record of 22-7 (21). Barnaoui lost the fight via 3-round unanimous decision.
On September 23, 2023 Mansour Barnaoui faced off against Jay Jay Wilson in a lightweight bout at age 31. He was coming in with a record of 20-6 (19). Barnaoui lost the fight via 3-round unanimous decision.
On May 12, 2023 Mansour Barnaoui faced off against Brent Primus in a lightweight bout at age 30. He was coming in with a record of 20-5 (19), and Primus was 38 years old and with a record of 11-3 (8). Barnaoui lost the fight via 5-round unanimous decision.
On May 27, 2016 Mansour Barnaoui fought Mateusz Gamrot in a lightweight title fight for the KSW Championship title. Barnaoui was 23 years old and with a record of 12-4 (11), and Gamrot was 25 years old and with a record of 10-0 (6). Barnaoui lost the fight via 3-round unanimous decision.
On October 10, 2015 Mansour Barnaoui fought Ivan Buchinger in a featherweight title fight for Buchinger's M-1 Global Championship title. Barnaoui was 23 years old and with a record of 12-3 (11). Barnaoui lost the fight via 5-round unanimous decision.
On April 9, 2013 Mansour Barnaoui faced off against Islam Makhachev at age 20. He was coming in with a record of 8-2 (7), and Makhachev was 21 years old and with a record of 7-0 (5). Barnaoui lost the fight via 3-round unanimous decision.
On June 29, 2012 Mansour Barnaoui faced off against Kevin Lee at age 19. He was coming in with a record of 7-1 (6), and Lee was 19 years old and with a record of 1-0 (0). Barnaoui lost the fight via 3-round unanimous decision.
