1970-04-18 Ruben Olivares w pts 15 Chucho Castillo, Inglewood Forum, Los Angeles, California, USA - WORLD
18 April Ruben Olivares w pts 15 Chucho Castillo, Inglewood Forum, Los Angeles, California, USA - WORLD. Referee: George Latka. Scorecards: 9-4, 10-5, 7-6. In what he called the toughest fight of his career, Olivares (117½), floored in the third round, was forced to go the full route for only the third time in 57 outings as Castillo (117½) went with him all the way despite always running second best. Although the challenger came with spirited rally in the 14th he was too far behind to turn things around, but he had proved that Olivares could not knock everyone over. Castillo earned himself another crack at Olivares when beating Rogelio Lara (w pts 12 at the Inglewood Forum on 14 August) in an eliminating bout, which also carried the vacant NABF title.