Vacated on the September 25, 2007 edition of SmackDown! (aired September 28) by acting General Manager Vickie Guerrero, citing that his status as Mr. McMahon's (kayfabe) son and his dimunitive stature would eventually jeopardize his well-being.
The championship became the WWF Cruiserweight Championship when the WWF defeated The Alliance at Survivor Series on November 18 and replaced the WWF Light Heavyweight Championship. The championship became exclusive to SmackDown on March 25, 2002.
Was announced on Nitro to have defeated Lenny Lane during a house show match, however the match never took place. Later histories state Psychosis was awarded the championship on Monday Nitro for unexplained reasons.
Defeated Dean Malenko by disqualification. On July 12 at Bash at the Beach, Rey Misterio, Jr. defeated Jericho for the championship due to interference from Malenko; Jericho was returned the championship the following night.
Defeated Richard Morton in a tournament final to become the first WCW Light Heavyweight Champion. WCW did not recognize Light Heavyweight reigns as being part of the Cruiserweight championship's history. When WWE came into possession of the championship in 2001, they were added to its history.