Here is a list of Pérez's best fights. For a list of Pérez's losses, refer to "Alejandro Pérez Losses".
On April 14, 2018 Alejandro Pérez faced off against Matthew Lopez in a bantamweight bout at age 28. He was coming in with a record of 20-6-1 (14), and Lopez was 31 years old and with a record of 10-2 (8). Pérez stopped Matthew Lopez via TKO.
On April 10, 2016 Alejandro Pérez faced off against Ian Entwistle in a bantamweight bout at age 26. He was coming in with a record of 17-6 (13), and Entwistle was 29 years old and with a record of 9-2 (7). Pérez stopped Ian Entwistle via TKO.
On August 5, 2017 Alejandro Pérez faced off against Andre Soukhamthath in a bantamweight bout at age 27. He was coming in with a record of 18-6-1 (13), and Soukhamthath was 28 years old and with a record of 11-4 (10). Pérez won the fight via 3-round split decision.
On October 2, 2021 Alejandro Pérez faced off against Johnny Eduardo in a bantamweight bout at age 32. He was coming in with a record of 22-8-1 (15), and Eduardo was 43 years old and with a record of 28-12 (21). Pérez stopped Johnny Eduardo via submission.
On November 15, 2014 Alejandro Pérez faced off against José Alberto Quiñónez in a bantamweight bout at age 25. He was coming in with a record of 15-5 (11). Pérez won the fight via 3-round unanimous decision.
On November 21, 2015 Alejandro Pérez faced off against Scott Jorgensen in a bantamweight bout at age 26. He was coming in with a record of 16-6 (12), and Jorgensen was 33 years old and with a record of 15-11 (7). Pérez stopped Scott Jorgensen via TKO.
On July 14, 2018 Alejandro Pérez faced off against Eddie Wineland in a bantamweight bout at age 28. He was coming in with a record of 21-6-1 (14), and Wineland was 34 years old and with a record of 23-12-1 (18). Pérez won the fight via 3-round unanimous decision.
On December 9, 2017 Alejandro Pérez faced off against Iuri Alcântara in a bantamweight bout at age 28. He was coming in with a record of 19-6-1 (13), and Alcântara was 37 years old and with a record of 35-8 (28). Pérez won the fight via 3-round unanimous decision.
On June 17, 2005 Alejandro Pérez faced off against Mario Rivera at age 15. He was coming in with a record of 1-0 (1). Pérez stopped Mario Rivera via submission.