WWE WORLD TITLE
January 1 Titleholder: Kurt Angle
December 31 Titleholder: Brock Lesnar
Title Changes in 2003: 3 (between 2 men)
Average Title Reign: 91 days
Notes: Only two men held this title in 2003. Angle held the strap for 3 months to open the year, and again for 2 months in late summer. Lesnar held the title twice, as well, covering the other 7 months of the year.

 
WWE TAG TEAM TITLE
January 1 Titleholder: Los Guerreros
December 31 Titleholder: The Basham Brothers
Title Changes in 2003: 5 (among 4 teams)
Average Title Reign: 61 days
Notes: Four different teams wore these belts in 2003, with Los Guerreros and Charlie Haas/Shelton Benjamin each having two reigns apiece. Eddie Guerrero also added a third title reign with Tajiri as his partner. With one reign as "Team Angle" and a second as "The World's Greatest Tag Team," Haas and Benjamin combined to hold the titles for almost six months. The other three teams pretty much split the other half of the year evenly among themselves: Los Guerreros' two reigns were for about one-month each, Eddie added a 2-month run with Tajiri as his partner, and the Bashams closed the year with 2 months as champs.
 

WWE UNITED STATES TITLE
January 1 Titleholder: None (Title Reactivated on July 27)
December 31 Titleholder: The Big Show
Title Changes in 2003: 2 (between 2 men)
Average Title Reign: 77 days
Notes: Eddie Guerrero won the revived US Title with a tourney final win over Chris Benoit in late July, and then dropped it to the Big Show in mid-October.
 

WWE CRUISERWEIGHT TITLE
January 1 Titleholder: Billy Kidman
December 31 Titleholder: Rey Mysterio
Title Changes in 2003: 4 (among 4 men)
Average Title Reign: 73
Notes: Although Kidman opened the year as champ, the division pretty much belonged to Matt Hardy (3 month reign), Rey Mysterio (4 month reign), and Tajiri (3 month reign). Mysterio snuck one in under the wire, winning the belt back on 12/30 (for a match that aired on January 1, 2004).
 

WORLD HEAVYWEIGHT TITLE
January 1 Titleholder: Triple H
December 31 Titleholder: Triple H
Title Changes in 2003: 2 (between 2 men)
Average Title Reign: 122 days
Notes: Since its inception (or its "revival" if you're one of those suckers who wants to tie this title's legacy to the old NWA/WCW belt), this has been, for all intents and purposes, HHH's personal costume jewelry. After allowing only Shawn Michaels to borrow it for one month in 2002, HHH parted with the title for less than 3 months in 2003 (Goldberg held the belt for that stretch).
 

WORLD TAG TEAM TITLE
January 1 Titleholder: Booker T and Goldust
December 31 Titleholder: Ric Flair and Batista
Title Changes in 2003: 8 (among 7 teams)
Average Title Reign: 40 days
Notes: Easily the hottest potato of any major wrestling title in 2003, the RAW brand tag title also saw 7 different teams hold the gold (only the Dudleys and Lance Storm/William Regal counted two reigns apiece to their credit, although that's only because of a double switch between the two teams in January where the Duds won the titles on PPV only to drop them back the next night on RAW). La Resistance had the longest reign of the year, controlling the tag titles for over 3 months in the middle of the year. Both Kane/RVD and the Duds had reigns of about 11 weeks each, as well. If you discount the Duds one-day reign and pay no mind to "Chief" Morley replacing an ill William Regal, Lance Storm and his two partners basically ruled the tag division for about the first 3 months of the year, too.
 

INTERCONTINENTAL TITLE
January 1 Titleholder: None (revived on May 18)
December 31 Titleholder: Randy Orton
Title Changes in 2003: 7 (among 5 men)
Average Title Reign: 27 days
Notes: OK, if you go by average reign, this was a hotter potato than the tag titles on RAW... after being revived in May, the IC Title was busy for the remaining 7 months of the year. It was the only major title to change hands on a house show (Christian over Booker T), and also the only title to change hands twice in one night (Jericho beat RVD, RVD regained the belt in an immediate rematch on RAW). Both Christian and RVD had two reigns apiece; Christian's were both for just under 2 months each, while RVD had a one-month reign and then about a 7-week reign (if not for the wackiness with Jericho, it'd basically have been a contiguous 3 month reign).
 

WORLD WOMEN'S TITLE
January 1 Titleholder: Victoria
December 31 Titleholder: Molly Holly
Title Changes in 2003: 4 (among 5 women)
Average Title Reign: 73 days
Notes: Molly's five-month reign to close out the year was the best in the division in 2003. Victoria held the belt for 3 months to start the year. Jazz was the champ for 2 months in the middle of the year; Trish Stratus and Gail Kim each enjoyed roughly one month apeice with the gold. This is, I believe, the only major title to not have any repeat champions over the course of the year.
 

NWA TITLE
January 1 Titleholder: Jeff Jarrett
December 31 Titleholder: Jeff Jarrett
Title Changes in 2003: 2 (between 2 men)
Average Title Reign: 122 days
Notes: Double J is a lot like Triple H, just on a smaller scale. Possessing immense backstage clout and being a very viable on-screen character, Jarrett dominated the NWA Title picture in 2003. AJ Styles held the gold for about 4 months in the middle of the year, but Jarrett was the champ, otherwise.

NWA TAG TEAM TITLE
January 1 Titleholder: Brian Lee and Slash
December 31 Titleholder: 3 Live Kru (Konnan, BG James, Ron Killings)
Title Changes in 2003: 8 (among 5 teams, 2 of whom rotated members)
Average Title Reign: 40 days
Notes: This was the only major title to be vacated in 2003, and it just so happened to be vacated twice. The controversy continues when you consider that no fewer than THREE different 3-man teams held or contended for the gold, with stipulations in place that allowed for any two of those three to defend the titles. Triple X (Christopher Daniels, Low-Ki, and Elix Skipper), Simon/Swinger/Gilberti, and 3 Live Kru (who ended the year as champs) all got this special treatment. Triple X's 3 reigns in 2003 combined for almost 5 months; America's Most Wanted also held the gold twice for about 2 months, total, while Simon/Swinger had a single 3 month reign of note.

TNA X TITLE
January 1 Titleholder: Sonny Siaki
December 31 Titleholder: Michael Shane
Title Changes in 2003: 4 (among 5 men)
Average Title Reign: 73 days
Notes: After changing hands three times in the first five months of the year, the X Title settled around Michael Shane's waist in August, and stayed there for the last five months of the year. [Note: Shane has already lost the title in 2004, losing it on 1/07.] Of the four guys who held the X Title in the first half of the year, Chris Sabin's 3 months reign was the best.