#3 Chavo Guerrero (pinned by Jacqueline)

Chavo Guerrero was doing well for himself on WWE SmackDown, back in 2004. He had defeated Rey Mysterio at WWE No Way Out to win the Cruiserweight title, with some help from Chavo Classic. He went on to defend the belt in a Cruiserweight Championship open at WrestleMania 20. Chavo somehow managed to beat the odds and came out victorious when all was said and done. He soon began getting cocky and laid down an open challenge on an episode of SmackDown.
Jacqueline defeats Chavo:
In an interesting turn of events the challenge was accepted by a female, WWE Diva Jacqueline. Chavo and Jacqueline went at it moments after. As was expected, Chavo dominated Jacqueline for the better part of the match. In the end, while the referee was busy talking with Chavo Classic on one side of the ring, Jacqueline took advantage of the opportunity and hit Chavo with a low blow. To the surprise of the audience, Jacqueline pinned Chavo to win the Cruiserweight title. She held the belt for a short period of time, and dropped it later to Chavo at Judgment Day 2004.