WEC 25: McCullough vs. Cope was the first mixed martial arts event held by the World Extreme Cagefighting under Zuffa management. The event was held on January 20, 2007. WEC 25's main event was a championship fight for the vacant WEC Lightweight Title, between rivals Rob McCullough and Kit Cope. The co-main event was a WEC Featherweight Title bout between champion, Urijah Faber and challenger Joe Pearson.

WEC 19: Undisputed was a mixed martial arts event held by World Extreme Cagefighting on March 17, 2006 at the Tachi Palace Hotel & Casino in Lemoore, California. The event aired live on the HDNet Fights.

Pride Bushido 11, also promoted as Pride Bushido Survival in North America, was a mixed martial arts event held by the Pride Fighting Championships. It took place at the Saitama Super Arena in Saitama, Japan on June 4, 2006.

WEC 10: Bragging Rights was a mixed martial arts event promoted by World Extreme Cagefighting on May 21, 2004 at the Tachi Palace Hotel & Casino in Lemoore, California. This event saw the fourth appearance of future Superstar Gilbert Melendez who took on Olaf Alfonso. This event also saw two of the most well known fighters in the world Karo Parisyan take on Shonie Carter. The main event saw Mike Serr take on Rafael Real.

WEC 24: Full Force was a mixed martial arts event held on October 12, 2006. WEC 24's main event was a championship fight for the WEC Lightweight Title between champion Hermes Franca and challenger Nate Diaz.

WEC 14: Vengeance was a mixed martial arts event promoted by World Extreme Cagefighting on March 17th, 2005 at the Tachi Palace Hotel & Casino in Lemoore, California.[1] The Main Event saw John Polakowski take on Olaf Alfonso.

WEC 13: Heavyweight Explosion was a mixed martial arts event promoted by World Extreme Cagefighting on January 22nd, 2005 at the Tachi Palace Hotel & Casino in Lemoore, California. The card featured a 4 man Heavyweight Tournament featuring Brandon Vera as well as single fights which saw the likes of Jason "The Punisher" Lambert, Brad Imes, and MMA legend "Mr. International" Shonie Carter compete.

WEC 11: Evolution was a mixed martial arts event promoted by World Extreme Cagefighting on August 20, 2004 at the Tachi Palace Hotel & Casino in Lemoore, California. The main event saw Shonie Carter take on Jason Biswell.

World Extreme Cagefighting returned to The Palace Indian Gaming Center in Lemoore, California for the ninth installment of promoters Scott Adams' and Reed Harris' emerging event. With a few big name guys and a packed stable of home grown talent, the WEC has started to make a push towards the top of the pack when it comes to regional events.

WEC 7: This Time It's Personal was a mixed martial arts event promoted by World Extreme Cagefighting on August 9, 2003 at the Tachi Palace Hotel & Casino in Lemoore, California. The main event saw Ron Waterman takes on James Nevarez to decide WEC's inaugural Super Heavyweight Champion.