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.

WEC 1: Princes of Pain was a mixed martial arts event held on June 30, 2001 at the Tachi Palace Hotel & Casino in Lemoore, California. WEC 1's main event was a fight between Dan Severn and Travis Fulton.

The year 2002 is the 2nd year in the history of World Extreme Cagefighting, a mixed martial arts promotion based in the United States. In 2002 WEC held 3 events beginning with, WEC 3: All or Nothing.

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.

WEC 8: Halloween Fury 2 was a mixed martial arts event promoted by World Extreme Cagefighting on October 17, 2003 at the Tachi Palace Hotel & Casino in Lemoore, California. The main event saw Cole Escovedo defend the WEC Featherweight title against Anthony Hamlett

WEC 15: Judgment Day was a mixed martial arts event promoted by World Extreme Cagefighting on May 19th 2005 at the Tachi Palace Hotel & Casino in Lemoore, California. The card featured the likes of Joe Riggs, Chris Lytle and James Irvin compete.