Alejandro Pérez has nine losses against nine opponents on his MMA record. For a list of Pérez's best fights, refer to "Best fights of Alejandro Pérez".
On February 26, 2022 Alejandro Pérez faced off against Jonathan Martinez in a featherweight bout at age 32. He was coming in with a record of 22-9-1 (15), and Martinez was 27 years old and with a record of 14-4 (9). Pérez lost the fight via 3-round unanimous decision.
On July 6, 2019 Alejandro Pérez faced off against Song Yadong in a bantamweight bout at age 29. He was coming in with a record of 21-8-1 (14), and Yadong was 21 years old and with a record of 14-5 (8). Pérez lost the fight via 1st-round KO.
On March 2, 2019 Alejandro Pérez faced off against Cody Stamann in a bantamweight bout at age 29. He was coming in with a record of 21-7-1 (14), and Stamann was 29 years old and with a record of 17-2 (8). Pérez lost the fight via 3-round unanimous decision.
On June 13, 2015 Alejandro Pérez faced off against Patrick Williams in a bantamweight bout at age 25. He was coming in with a record of 15-6 (11), and Williams was 33 years old and with a record of 7-4 (6). Pérez lost the fight via 1st-round choke-out.
On August 2, 2013 Alejandro Pérez faced off against José Alberto Quiñónez at age 23. He was coming in with a record of 13-5 (10). Pérez lost the fight via 3-round unanimous decision.
On May 28, 2011 Alejandro Pérez faced off against Masio Fullen at age 21. He was coming in with a record of 10-4 (9). Pérez lost the fight via 1st-round TKO.
On April 19, 2008 Alejandro Pérez faced off against Kevin Dunsmoor at age 18. He was coming in with a record of 5-3 (5). Pérez lost the fight via 2nd-round submission.
On January 26, 2008 Alejandro Pérez faced off against Ivan Lopez at age 18. He was coming in with a record of 4-2 (4). Pérez lost the fight via 3-round unanimous decision.
On April 21, 2007 Alejandro Pérez faced off against Chris David at age 17. He was coming in with a record of 3-1 (3). Pérez lost the fight via 2nd-round submission.