Colton Smith is an American mixed martial artist and Combatives and Brazilian Jiu-Jitsu black belt under Matt Larsen and Alliance Jiu-Jitsu who formerly competed in the Lightweight division of the Ultimate Fighting Championship. Smith is best known for competing on, and winning The Ultimate Fighter: Team Carwin vs. Team Nelson. His dominant wrestling style allowed him to defeat all five fighters he faced in the tournament by decision. On August 20, 2015, it was announced that Smith signed with the World Series of Fighting. He made his eventual debut on October 17, 2015 at WSOF 24 against Washington Da Silva. He won the fight via unanimous decision. He is currently an active member of the U.S. Army.