Abner Mares has three losses against two opponents on his boxing record. For a list of Mares's best fights, refer to "Best fights of Abner Mares".
On June 9, 2018 Abner Mares fought Léo Santa Cruz in a featherweight world-title fight for Cruz' WBA (Super) title. Mares was 32 years old and with a record of 31-3-1 (15), and Cruz was 29 years old and with a record of 34-1-1 (19). Mares lost the fight via 12-round unanimous decision.
On August 29, 2015 Abner Mares fought Léo Santa Cruz in a featherweight world-title fight for the WBA (Super) title. Mares was 29 years old and with a record of 29-2-1 (15), and Cruz was 27 years old and with a record of 30-0-1 (17). Mares lost the fight via 12-round majority decision.
On August 24, 2013 Abner Mares met Jhonny González in a featherweight (WBC) world-title defense fight. Mares was 27 years old and with a record of 26-1-1 (14), and González was 31 years old and with a record of 54-8 (46). Mares lost the fight via 1st-round TKO and lost the title.
