Strikeforce Challengers 18: Gurgel vs. Duarte was a mixed martial arts event held by the Strikeforce. The eighteenth Challengers episode took place on August 12, 2011 at Palms Casino Resort in Las Vegas, Nevada.
Joe Duarte
Jorge Gurgel
Nate James
Danillo Villefort
Pat Healy
Eric Wisely
Ronda Rousey
Sarah D'Alelio
Derrick Mehmen
Roy Jones
Gian Villante
Keith Berry
Nah-Shon Burrell
Lukasz Les
Mike Bronzoulis
Chad Leonhardt
Milton Vieira
Sterling Ford