Rafael Concepción has eight losses against eight opponents on his boxing record. For a list of Concepción's best fights, refer to "Best fights of Rafael Concepción".
On August 8, 2015 Rafael Concepción faced off against Roberto Vásquez in a super-bantamweight bout at age 33. He was coming in with a record of 18-8-1 (8), and Vásquez was 30 years old and with a record of 32-6-2 (22). Concepción lost the fight via 4th-round TKO.
On October 26, 2013 Rafael Concepción faced off against Genesis Servania in a super-bantamweight bout at age 31. He was coming in with a record of 18-7-1 (8), and Servania was 22 years old and with a record of 22-0 (8). Concepción lost the fight via 2nd-round TKO.
On October 22, 2011 Rafael Concepción faced off against Liborio Solís in a bantamweight bout at age 29. He was coming in with a record of 16-6-1 (8), and Solís was 29 years old and with a record of 11-3-1 (7). Concepción lost the fight via 11-round unanimous decision.
On July 17, 2010 Rafael Concepción faced off against Fernando Montiel in a bantamweight bout at age 28. He was coming in with a record of 14-5-1 (8), and Montiel was 31 years old and with a record of 42-2-2 (32). Concepción lost the fight via 3rd-round KO.
On August 15, 2009 Rafael Concepción faced off against Nonito Donaire in a super-flyweight bout at age 27. He was coming in with a record of 13-4-1 (8), and Donaire was 26 years old and with a record of 21-1 (14). Concepción lost the fight via 12-round unanimous decision.
On September 15, 2008 Rafael Concepción faced off against Jorge Arce in a super-flyweight bout at age 26. He was coming in with a record of 11-3-1 (7), and Arce was 29 years old and with a record of 49-4-1 (37). Concepción lost the fight via 9th-round retirement.
On November 13, 2004 Rafael Concepción faced off against Ricardo Molina at age 22. He was coming in with a record of 3-2-1 (2). Concepción lost the fight via 6-round split decision.
On January 31, 2003 Rafael Concepción faced off against Alexander Murillo at age 20. He was coming in with a record of 1-1 (1). Concepción lost the fight via 2nd-round TKO.
