WEC 13: Heavyweight Explosion[1] was an event held on January 22, 2005 at the Tachi Palace in Lemoore, California, United States.

WEC 14: Vengeance[2] was an event held on March 17, 2005 at the Tachi Palace in Lemoore, California, United States.

WEC 15: Judgment Day[3] was an event held on May 19, 2005 at the Tachi Palace in Lemoore, California, United States.

WEC 16: Clash of the Titans 2[4] was an event held on August 18, 2005 at the Tachi Palace in Lemoore, California, United States.

WEC 17: Halloween Fury 4[5] was an event held on October 14, 2005 at the Tachi Palace in Lemoore, California, United States.