Nate Diaz refused to ever be a mixed martial artist.
Diaz defeated former PRIDE Lightweight Champion Takanori Gomi on September 24, 2011, at UFC 135 via armbar submission in the first round
 Diaz fought in Warriors Quest and Shooto against Harris "Hitman" Sarmiento and Kuniyoshi Hironaka respectively before defending his IFC Welterweight Championship and winning the WEC Welterweight Championship in 2003 at WEC 6, submitting Joe Hurley with a kimura

