Rafael Fiziev has four losses against three opponents on his MMA record. For a list of Fiziev's best fights, refer to "Best fights of Rafael Fiziev".
On March 8, 2025 Rafael Fiziev faced off against Justin Gaethje in a lightweight bout at age 32. He was coming in with a record of 12-4 (9), and Gaethje was 36 years old and with a record of 25-5 (21). Fiziev lost the fight via 3-round unanimous decision.
On September 23, 2023 Rafael Fiziev faced off against Mateusz Gamrot in a lightweight bout at age 30. He was coming in with a record of 12-3 (9), and Gamrot was 32 years old and with a record of 22-2 (12). Fiziev lost the fight via 2nd-round TKO.
On March 18, 2023 Rafael Fiziev faced off against Justin Gaethje in a lightweight bout at age 30. He was coming in with a record of 12-2 (9), and Gaethje was 34 years old and with a record of 23-4 (20). Fiziev lost the fight via 3-round majority decision.
On April 20, 2019 Rafael Fiziev faced off against Magomed Mustafaev in a lightweight bout at age 26. He was coming in with a record of 6-1 (6), and Mustafaev was 30 years old and with a record of 13-2 (13). Fiziev lost the fight via 1st-round TKO.