WEC 38: Varner vs. Cerrone was a mixed martial arts event held by World Extreme Cagefighting on January 25, 2009. It aired live on the Versus Network. In the main event WEC Lightweight Champion Jamie Varner defended his title against number one contender and undefeated Donald Cerrone. Also featured on the card was a rematch between former WEC Featherweight Champion Urijah Faber and Jens Pulver.

WEC 41: Brown vs. Faber 2 was a mixed martial arts event held by World Extreme Cagefighting on June 7, 2009 at the Arco Arena in Sacramento, California. It was the most successful show in the WEC's history. Featherweight champion Mike Brown defended his title in a rematch against former champion and no. 1 contender Urijah Faber in the main event. UFC lightweight Kenny Florian acted as a special guest color commentator. Eddie Wineland was expected to face Frank Gomez at the event, but was forced off the card with an injury and replaced by Noah Thomas. Rich Crunkilton was expected to face Donald Cerrone at the event, but was forced out of the bout with an injury and replaced by James Krause. The event drew an estimated 1,300,000 viewers on Versus.

WEC 43: Cerrone vs. Henderson was a mixed martial arts event held by World Extreme Cagefighting on October 10, 2009 at the AT&T Center in San Antonio, Texas. The best light weight fighters in the world will be on display when WEC invades the Covelli Centre in Youngstown, OH. In the main event, fan favorite Donald “Cowboy” Cerrone battles feared striker Ben Henderson in a bout that will crown the interim WEC lightweight champion.

On Saturday, March 6, 2010, WEC heads to Columbus, Ohio with a stacked card headlined by a world bantamweight title fight between champion Brian Bowles and number one contender Dominick Cruz. What’s more, WEC’s first trip to Columbus features the return of former bantamweight champion Miguel Angel Torres, as well as the comeback of former UFC® lightweight titleholder Jens Pulver.

WEC 32: New Mexico was a mixed martial arts (MMA) event held by World Extreme Cagefighting (WEC) that took place on Wednesday, February 13, 2008. For the first time under Zuffa ownership, the show was held in Rio Rancho, New Mexico and not the usual spot of Las Vegas, Nevada. The event drew an estimated 268,000 viewers on Versus, a record low for the WEC.

WEC 35: Condit vs. Miura was a mixed martial arts event held by World Extreme Cagefighting that took place on August 3, 2008 at the Hard Rock Hotel and Casino in Las Vegas, Nevada. The event aired live on the Versus Network.

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 48: Aldo vs. Faber was a mixed martial arts event held by World Extreme Cagefighting that took place on April 24, 2010 at ARCO Arena in Sacramento, California. The event marked the WEC's debut on pay-per-view.

WEC 50: Cruz vs. Benavidez 2 was a mixed martial arts event held by World Extreme Cagefighting that took place on August 18, 2010 at The Pearl at The Palms in Las Vegas, Nevada.

WEC 53: Henderson vs. Pettis was a mixed martial arts event held by World Extreme Cagefighting that took place on December 16, 2010 at Jobing.com Arena in the Phoenix suburb of Glendale, Arizona. The event was the first time that Zuffa has hosted an event in Arizona. This was the final WEC event before merging with UFC in 2011.