A 1992 graduate of Escondido High School in California, he played baseball and football before attending The Master's College in Santa Clarita, California for one year and then transferring to the University of Oklahoma. In his sophomore year at Oklahoma, Redman set school records for strikeouts (136) and innings pitched (135.1) during the regular season and posted a 5-0 record in post-season play as he helped the Sooners win the 1994 College World Series title.