The Triple Crown of Thoroughbred Racing (although sometimes shortened to Triple Crown, the full name is used to avoid possible confusion with other sports) consists of three races for three-year-old
thoroughbred horses. Winning all three of these
thoroughbred horse races is considered the greatest accomplishment of a thoroughbred racehorse. In recent years, the triple crown has become a very rare achievement, with most horses specialising on a limited range of distances.
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