WEC 29: Condit vs. Larson was a mixed martial arts event held by World Extreme Cagefighting. The event took place on Sunday, August 5, 2007 at the Hard Rock Hotel and Casino in Las Vegas, Nevada. The event aired live on the Versus Network. The main event featured the WEC Welterweight title fight between champion, Carlos Condit, and challenger, Brock Larson. The show also featured the U.S. debut of PRIDE veteran Paulo Filho as he fought Joe Doerksen for the vacant WEC Middleweight title.

WEC 27: Marshall vs. McElfresh was the third mixed martial arts event held by the World Extreme Cagefighting under Zuffa management. The event was held on May 12, 2007. UFC lightweight fighter and future WEC Lightweight Champion Jamie Varner was expected to make his promotional debut on this card against Richard Crunkilton, but the fight was removed from the card after Varner suffered training injuries.