19. Biggest Margin of Victory in a Triple Crown Race (31 Lengths)
Set By: Secretariat
Many Triple Crown races come down to the wire, given the incredible time and care spent training each horse. In 1973, though, the playing field was anything but level. In one of the great displays of dominance in the history of sports, Secretariat sent the rest of his competition to the glue factory with a performance so stunning that even years later no horse has come remotely close to approaching it. The next-longest victory occurred in 1943 (which was 25 lengths), and in the modern era the closest anyone has come was Smarty Jones at the 2004 Preakness with an 11.5 length win. Nobody is beating this horse, which will go down throughout history as the greatest racer who ever lived.