Rogelio Castañeda, Jr (born September 8, 1979 in Tijuana, Baja California, Mexico) is a Mexican boxer in the Welterweight division. Rogelio is the former WBC FECARBOX and IBA Light Welterweight Champion. In June 2001, Rogelio upset an undefeated Frankie Santos by K.O. to win the WBC FECARBOX Light Welterweight Championship, the bout was held at the Miccosukee Indian Gaming Resort in Miami, Florida. On May 27, 2005 Castañeda beat title contender Tomas Barrientes to win the IBA Light Welterweight Championship. The light welterweight class (also called junior welterweight or super lightweight) is a weight division in professional boxing that has a limit of 63.5 kg or 140 pounds. The first champion of this weight class was Pinky Mitchell in 1926, though he was only awarded his championship by a vote of the readers of the Boxing Blade magazine.