Here is a list of Santos's best fights. For a list of Santos's losses, refer to "Mairon Santos Losses".
On December 6, 2025 Mairon Santos faced off against Muhammad Naimov in a lightweight bout at age 25. He was coming in with a record of 20-2 (10), and Naimov was 31 years old and with a record of 13-3 (7). Santos stopped Muhammad Naimov via TKO.
On March 8, 2025 Mairon Santos faced off against Francis Marshall in a featherweight bout at age 24. He was coming in with a record of 18-2 (9). Santos won the fight via 3-round split decision.
On August 24, 2024 Mairon Santos faced off against Kaan Ofli in a featherweight bout at age 24. He was coming in with a record of 17-2 (9). Santos stopped Kaan Ofli via TKO.
On May 17, 2025 Mairon Santos faced off against Sodiq Yusuff in a lightweight bout at age 24. He was coming in with a record of 19-2 (9), and Yusuff was 31 years old and with a record of 13-4 (7). Santos won the fight via 3-round unanimous decision.
On March 1, 2020 Mairon Santos faced off against Julio Pereira in a featherweight bout at age 19. He was coming in with a record of 10-0 (6). Santos stopped Julio Pereira via TKO.
On April 9, 2024 Mairon Santos faced off against Guillermo Torres in a featherweight bout at age 23. He was coming in with a record of 16-2 (8). Santos won the fight via 3-round unanimous decision.
