For more than a century, Saratoga Race Course has earned one of the most famous monikers in horse racing: the Graveyard of Favorites.

The historic track has a long tradition of humbling champions, turning seemingly unbeatable horses into victims of stunning upsets.

While favorites win their fair share of races at Saratoga, the track’s history is filled with shocking defeats that have become part of racing folklore.

The reputation took hold in 1919, when the legendary MAN O’ WAR suffered the only loss of his career in the Sanford Stakes. Fittingly, the horse that beat him was named UPSET, creating one of the sport’s most memorable ironies and helping establish Saratoga as a place where anything can happen.

The nickname grew even stronger in 1930 when Triple Crown winner GALLANT FOX was defeated in the Travers Stakes by JIM DANDY– a 100-1 longshot. The upset was so remarkable that it remains one of the biggest surprises in racing history and is often cited as the moment Saratoga truly became the Graveyard of Favorites.

Perhaps the most famous modern example came in 1973, when Triple Crown hero SECRETARIAT entered the Whitney Stakes as an overwhelming favorite, only to be defeated by ONION. The loss stunned racing fans and reinforced the reputation that Saratoga is the place where tremendous champions can suddenly look vulnerable.

The 21st century is not without a major entry into the boneyard registers book. In 2015, Triple Crown winner AMERICAN PHAROAH suffered his only defeat after winning the Triple Crown when KEEN ICE ran him down in the final furlong to win the Travers Stakes.

It was yet another reminder that no horse, regardless of reputation, is ever a sure thing at Saratoga.

From MAN O’ WAR to AMERICAN PHAROAH and many lesser upsets in between, Saratoga’s history proves why horseplayers still respect its well-deserved alias.

At The Spa, favorites may be expected to win—but history shows that legends are often made when they don’t.