Édgar Sosa has 11 losses against 10 opponents on his boxing record. For a list of Sosa's best fights, refer to "Best fights of Édgar Sosa".
On June 17, 2017 Édgar Sosa faced off against Julio Cesar Martinez at age 37. He was coming in with a record of 52-11 (30), and Martinez was 22 years old and with a record of 5-1 (3). Sosa lost the fight via 8-round unanimous decision.
On September 24, 2016 Édgar Sosa faced off against Donnie Nietes in a flyweight bout at age 37. He was coming in with a record of 52-10 (30), and Nietes was 34 years old and with a record of 38-1-4 (22). Sosa lost the fight via 12-round unanimous decision.
On May 16, 2015 Édgar Sosa fought Román González in a flyweight world-title fight for González' WBC and The Ring titles. Sosa was 35 years old and with a record of 51-9 (30), and González was 27 years old and with a record of 42-0 (36). Sosa lost the fight via 2nd-round TKO.
On December 6, 2013 Édgar Sosa fought Akira Yaegashi in a flyweight world-title fight for Yaegashi's WBC and The Ring titles. Sosa was 34 years old and with a record of 49-8 (29), and Yaegashi was 30 years old and with a record of 18-3 (9). Sosa lost the fight via 12-round unanimous decision.
On October 21, 2011 Édgar Sosa fought Pongsaklek Wonjongkam in a flyweight world-title fight for Wonjongkam's WBC title. Sosa was 32 years old and with a record of 43-7 (26), and Wonjongkam was 34 years old and with a record of 82-3-1 (43). Sosa lost the fight via 12-round unanimous decision.
On November 21, 2009 Édgar Sosa met Rodel Mayol in a light-flyweight (WBC) world-title defense fight. Sosa was 30 years old and with a record of 37-6 (21). Sosa lost the fight via 2nd-round TKO and lost the title.
On September 13, 2003 Édgar Sosa faced off against Ulises Solís in a flyweight bout at age 24. He was coming in with a record of 12-5 (7). Sosa lost the fight via 12-round majority decision.
On July 3, 2003 Édgar Sosa faced off against Isaac Bustos in a strawweight bout at age 23. He was coming in with a record of 12-4 (7). Sosa lost the fight via 12-round majority decision.
On October 19, 2002 Édgar Sosa faced off against Omar Niño Romero at age 23. He was coming in with a record of 11-3 (6). Sosa lost the fight via 10-round unanimous decision.
On November 3, 2001 Édgar Sosa faced off against Manuel Vargas at age 22. He was coming in with a record of 8-2 (5). Sosa lost the fight via 8th-round TKO.
On May 5, 2001 Édgar Sosa faced off against Ulises Solís at age 21. He was coming in with a record of 5-1 (2). Sosa lost the fight via 6-round split decision.