Worst heavyweight champs of all time...

[AndreWardFan2006]

Leon Spinks would technically be the worste if his title reign is the shortest when he lost it to Ali in the rematch...unless someone else holds that record now.

~A.W.F~

[Thunder and Lightning]

Shortest Linear Title reigns (less than two years):

• George Foreman (first reign): 21 months, 8 days
• Mike Tyson: 18 months, 19 days
• Sonny Liston: 17 months, 0 days
• Jersey Joe Walcott: 14 months, 5 days
• Jack Sharkey: 12 months, 8 days
• Primo Carnera: 11 months, 30 days
• Max Baer: 11 months, 30 days
• Riddick Bowe: 11 months, 24 days
• Muhammad Ali (third reign): 10 months, 12 days (retired)
  
• James Braddock: 8 months, 23 days
  
• Ingemar Johannsen: 8 months, 21 days
• Buster Douglas: 8 months, 15 days
• Michael Moorer: 8 months, 13 days
• Marvin Hart: 7 months, 20 days
• Leon Spinks: 7 months, 0 days
• Hasim Rahman: 6 months, 25 days
• Evander Holyfield (second reign): 5 months, 16 days
• Shannon Briggs: 4 months, 3 days

Acctualy Braddock held the title for more than 2 years and Johansson held it for allmost 12 months only falling short on a couple of days