William Lawrence Sr Omnibit 12-4-14 William Lawrence Sr Omnibit 12-4-14 The heaviest athlete of all time was William S. Cobb, a wrestler from Macon, Ga. He weighed 802 pounds in 1962. Share this:PrintFacebookTwitterTelegramMeWeWhatsAppPinterestLinkedInParlerGabRedditEmailMorePocketTumblrLike this:Like Loading... Related