Grand Slam of Thoroughbred racing

The Grand Slam of Thoroughbred racing is an informal name for winning four major Thoroughbred horse races in one season in the United States. The term has been applied to two configurations of races, both of which include the races of the Triple Crown—the Kentucky Derby, Preakness Stakes and Belmont Stakes—and either the Travers Stakes or the Breeders' Cup Classic as the final race.