Miguel Beltrán Jr. has eight losses against eight opponents on his boxing record. For a list of Beltrán Jr.'s best fights, refer to "Best fights of Miguel Beltrán Jr.".
On September 21, 2019 Miguel Beltrán Jr. faced off against Chris Colbert in a lightweight bout at age 30. He was coming in with a record of 33-8 (22), and Colbert was 22 years old and with a record of 12-0 (4). Beltrán Jr. lost the fight via 1st-round KO.
On November 10, 2018 Miguel Beltrán Jr. faced off against Yuriorkis Gamboa at age 29. He was coming in with a record of 33-7 (22), and Gamboa was 36 years old and with a record of 28-2 (17). Beltrán Jr. lost the fight via 10-round unanimous decision.
On April 28, 2017 Miguel Beltrán Jr. faced off against Casey Ramos at age 27. He was coming in with a record of 32-6 (21). Beltrán Jr. lost the fight via 10-round unanimous decision.
On September 3, 2016 Miguel Beltrán Jr. faced off against Francisco Pina at age 27. He was coming in with a record of 31-5 (21). Beltrán Jr. lost the fight via 8-round unanimous decision.
On December 20, 2014 Miguel Beltrán Jr. faced off against Luis Sanchez at age 25. He was coming in with a record of 29-4 (19). Beltrán Jr. lost the fight via 8-round unanimous decision.
On February 8, 2014 Miguel Beltrán Jr. faced off against Carlos Diaz at age 24. He was coming in with a record of 28-3 (18). Beltrán Jr. lost the fight via 6th-round KO.
On September 15, 2012 Miguel Beltrán Jr. fought Roman Martinez in a super-featherweight world-title fight for the WBO title. Beltrán Jr. was 23 years old and with a record of 27-2 (17), and Martinez was 29 years old and with a record of 25-1-1 (16). Beltrán Jr. lost the fight via 12-round split decision.
On April 24, 2010 Miguel Beltrán Jr. faced off against Joksan Hernandez at age 20. He was coming in with a record of 22-1 (15). Beltrán Jr. lost the fight via 10th-round KO.
