WEC 45: Cerrone vs. Ratcliff was a mixed martial arts event held by World Extreme Cagefighting that took place on December 19, 2009 at The Pearl at The Palms in Las Vegas, Nevada. It marked the first time the WEC has held back-to-back events at the The Pearl at The Palms.

WEC 42: Torres vs. Bowles was a mixed martial arts event held by World Extreme Cagefighting on August 9, 2009 at the Hard Rock Hotel and Casino in Las Vegas, Nevada. Bantamweight champion Miguel Torres defends his title against no. 1 contender Brian Bowles in the main event.

WEC 40: Torres vs. Mizugaki was a mixed martial arts event held by World Extreme Cagefighting on April 5, 2009 at the UIC Pavilion in Chicago, Illinois. The event aired live on the Versus Network.