Matheus Nicolau has five losses against five opponents on his MMA record. For a list of Nicolau's best fights, refer to "Best fights of Matheus Nicolau".
On October 19, 2024 Matheus Nicolau faced off against Asu Almabayev in a flyweight bout at age 31. He was coming in with a record of 19-5-1 (10), and Almabayev was 30 years old and with a record of 20-2 (12). Nicolau lost the fight via 3-round unanimous decision.
On April 27, 2024 Matheus Nicolau faced off against Alex Perez in a flyweight bout at age 31. He was coming in with a record of 19-4-1 (10), and Perez was 32 years old and with a record of 24-8 (10). Nicolau lost the fight via 2nd-round KO.
On April 15, 2023 Matheus Nicolau faced off against Brandon Royval in a flyweight bout at age 30. He was coming in with a record of 19-3-1 (10), and Royval was 30 years old and with a record of 14-6 (12). Nicolau lost the fight via 1st-round KO.
On July 28, 2018 Matheus Nicolau faced off against Dustin Ortiz in a bantamweight bout at age 25. He was coming in with a record of 13-2-1 (8), and Ortiz was 29 years old and with a record of 18-7 (11). Nicolau lost the fight via 1st-round KO.
On December 9, 2012 Matheus Nicolau faced off against Pedro Nobre in a flyweight bout at age 19. He was coming in with a record of 7-1-1 (5). Nicolau lost the fight via 1st-round TKO.
