WEC 17: Halloween Fury 4 was a mixed martial arts event promoted by World Extreme Cagefighting on October 14, 2005, at the Tachi Palace Hotel & Casino in Lemoore, California. A light heavyweight tournament was held with the winner being crowned the champion and given a deal with the UFC.
<sup>1</sup>Justin Levens was forced to withdraw due to a shoulder injury. He was replaced by Vernon White. <br /> <sup>2</sup>Vernon White was forced to withdraw due to a hand injury. He was replaced by Tait Fletcher.