Career
He fought at Welterweight. León represented Mexico at the 1984 Los Angeles Olympic Games, as a Welterweight. His results were:
Defeated Daniel Omar Dominguez (Argentina) 5-0
Defeated Akinobu Hiranaka (Japan) 5-0
Defeated Khemais Refai (Tunisia) 3-2
Lost to Mark Breland (United States) KO by 1
In 1993 he challenged WBC welterweight title holder James McGirt, but lost a decision.