The following is a timeline for the WCW and WWE career of Chavo Guerrero Jr. For purposes of this article, Chavo Jr. will be referred to as Chavo and his father will be referred to as Classic Chavo. The tag team of Los Guerreros consisted of Chavo and his late-uncle Eddie Guerrero.
Listed is every PPV match (excluding battle royals in which he was not involved in the ending) and title change that he has been involved in. Bolded items represent title victories while italicized items represent title losses.
1996
9/15 Fall Brawl: lost to Dallas Page
1997
1/21 Clash of Champions 34 - Chris Jericho, Super Calo, & Chavo Guerrero beat Konnan, La Parka, & Mr.JL
1998
1/24 Souled Out - Chavo Guerrero, Juventud Guerrera, Super Calo, & Lizmark Jr. beat La Parka, Silver King, El Dandy, & Psicosis
4/19 Spring Stampede - lost to Ultimo Dragon
6/14 Great American Bash - beat Eddie Guerrero
7/12 Bash at the Beach - lost to Stevie Ray
7/12 Bash at the Beach - lost a Hair vs. Hair Match to Eddie Guerrero
8/8 Road Wild - lost to Stevie Ray
1999
1/17 Souled Out - lost to Norman Smiley
2/21 Superbrawl - lost to Cruiserweight Champion Billy Kidman
2000
12/4 Nitro - beat Mike Sanders to win the Cruiserweight Championship
2001
1/14 SIN - beat Shane Helms
2/18 Superbrawl Revenge - beat Rey Mysterio
3/18 Greed - lost the Cruiserweight title to Shane Helms
3/26 Final Nitro - lost to Cruiserweight Champion Shane Helms
2002
11/17 Survivor Series - Los Guerreros beat Champions Edge & Rey Mysterio and Kurt Angle & Chris Benoit to win the WWE Tag Team Championship
2003
2/6 SmackDown - Los Guerreros lost the WWE Tag Team Championship to Charlie Haas & Shelton Benjamin
3/30 WrestleMania XIX - WWE Tag TEam Champions Shelton Benjamin & Charlie Haas beat Los Guerreros and Chris Benoit & Rhyno
4/27 Backlash - Los Guerreros lost to WWE Tag Team Champions Shelton Benjamin & Charlie Haas
9/18 SmackDown - Los Guerreros regained the WWE Tag Team Championship from Charlie Haas & Shelton Benjamin
10/23 SmackDown - Los Guerreros lost the WWE Tag Team Championship to the Basham Brothers
11/16 Survivor Series - Los Guerreros lost to WWE Tag Team Champions the Basham Brothers
2004
1/25 Royal Rumble - lost to Eddie Guerrero
2/15 No Way Out - beat Rey Mysterio to win the Cruiserweight Championship
3/14 WrestleMania XX - beat Nunzio, Shannon Moore, Funaki, Ultimo Dragon, Rey Mysterio Jr., Tajiri, Akio, Billy Kidman & Jamie Knoble
5/6 SmackDown - lost the Cruiserweight championship to Jacqueline
5/16 Judgment Day - regained the Cruiserweight Championship from Jacqueline
5/20 SmackDown - Classic Chavo beat Chavo and Spike Dudley to win the Cruiserweight title
6/27 Great American Bash - lost to Cruiserweight Champion Rey Mysterio
11/14 Survivor Series - Cruiserweight Champion Spike Dudley beat Billy Kidman, Rey Mysterio Jr. & Chavo Guerrero
2005
2/20 No Way Out - Gauntlet match for Cruiserweight title: Chavo Guerrero beat Champion Funaki, Spike Dudley, Paul London, Akio, & Shannon Moore to win the title
3/31 SmackDown - Paul London won the Cruiserweight Championship in an 8-man battle royal
5/22 Judgment Day - lost to Cruiserweight Champion Paul London
9/18 Unforgiven - as Kerwin White lost to Shelton Benjamin
2006
8/20 SummerSlam - beat Rey Mysterio
10/8 No Mercy - lost to Rey Mysterio in a Falls Count Anywhere Match
11/26 Survivor Series - lost to U.S. Champion Chris Benoit
12/17 Armageddon - lost to U.S. Champion Chris Benoit
2007
2/18 No Way Out - Gauntlet Match for the Cruiserweight Title: Chavo Guerrero beat Champion Gregory Helms, Scotty 2 Hotty, Funaki, Jamie Noble, Jimmy Wang Yang, Daivari, and Shannon Moore to win the title
6/24 Vengeance - beat Jimmy Wang Yang
7/22 Great American Bash - Hornswoggle beat Cruiserweight Champion Chavo Guerrero, Funaki, Jamie Noble, Shannon Moore, and Jimmy Wang Yang to win the title
8/26 SummerSlam - lost to Rey Mysterio
2008
1/22 ECW on Sci FI - beat CM Punk in a No DQ match to win the ECW Championship
2/17 No Way Out - beat CM Punk
3/30 WrestleMania XXIV - lost the ECW Championship to Kane
4/27 Backlash - lost to ECW Champion Kane
6/1 One Night Stand - Singapore Cane Match: The Big Show beat CM Punk, Tommy Dreamer, John Morrison, and Chavo Guerrero
6/29 Night of Champions - lost to U.S. Champion Matt Hardy
9/7 Unforgiven - ECW Championship Scramble: Matt Hardy beat ECW Champion Mark Henry, the Miz, Chavo Guerrero, and Finlay
2009
6/7 Extreme Rules - Santina Marella beat Vickie and Chavo Guerrero in a Handicap Hog Pen Match
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
Chavo Guerrero
WWE: Snoop Dogg vs. Chavo Guerrero (RAW - 10.19.09)
WWE chavo guerrero theme song
