Career
WBC Light Flyweight Championship
In his first World Championship attempt he lost a very disputed twelve-round decision to Jung-Koo Chang in Chungmu Gymnasium, Daejeon, South of Korea. WBO Flyweight Championship
Isidro Pérez was reported to have died in Mexico in January 2013, he was reported missing earlier. Perez"s friends and family have not heard from him in months previous to reporting him missing and he has not cashed a pension check since September 2012.
Date of death was not reported.
