Here is a list of Beltrán's best fights. For a list of Beltrán's losses, refer to "Marco Beltrán Losses".
On November 28, 2015 Marco Beltrán faced off against Ning Guangyou in a bantamweight bout at age 29. He was coming in with a record of 13-3 (11), and Guangyou was 33 years old and with a record of 5-2-1 (4). Beltrán won the fight via 3-round split decision.
On July 7, 2016 Marco Beltrán faced off against Reginaldo Vieira in a bantamweight bout at age 30. He was coming in with a record of 14-3 (12). Beltrán stopped Reginaldo Vieira via submission.
On November 15, 2014 Marco Beltrán faced off against Marlon Vera in a bantamweight bout at age 28. He was coming in with a record of 12-3 (11), and Vera was 21 years old and with a record of 8-1-1 (7). Beltrán won the fight via 3-round unanimous decision.