On This Day… May 1

1983.- At the Roberto Clemente Coliseum in San Juan, Puerto Rican Edwin Rosario defeated Mexican José Luis Ramírez by decision. The WBC lightweight title was at stake in this match.
1990.- At the Army Sports Stadium in Bangkok, Thai Sot Chitalada defeated the Argentine Carlos Salazar by decision. The WBC flyweight title was on the line in this bout.
2006.-Thai Pongsaklek Wonjongkam defended his WBC flyweight title by defeating Japanese Daigo Nakahiro by decision, in Bangkok, Thailand. In the fight WBC flyweight title was on the line.
2015.- In Tokyo, Japan, Takashi Miura defeated Australian Billy Dib, defending his WBC super featherweight title. The match took place in Tokyo, Japan.