Triple Crown

These 13 horses have won the Triple Crown. But which champion was the fastest?

From the trailblazing Sir Barton to the latest winner Justify, see how the winners stack up

It’s the most prestigious prize in horse racing – and the most elusive

Only 13 thoroughbreds have won the coveted Triple Crown of horse racing in the 100-plus years since Sir Barton became the first to win all three big races — the Kentucky Derby, the Preakness Stakes and the Belmont Stakes — in the same year.

American Pharoah's sweep in 2015 ended a 25-year Triple Crown lull. Three years later, Justify's sweep made him the 13th horse ever to win the Triple Crown.

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But which of the 13 champions had the fastest time overall?

That would be horse racing legend Secretariat, who earned the three-race title in 1973 and holds the fastest combined time for each of the three races. Secretariat still holds the record for the fastest Kentucky Derby-winning time.

Why aren’t racehorses getting faster?

It’s possible that thoroughbred horses have already reached their maximum record speeds, according to a 2008 paper by Mark Denny, a Stanford biology professor who studies biomechanics.

Human speeds, particularly in men’s racing, may have not peaked yet, as we continue to see runners break records. But those increases in speed are expected to be less and less over time, Derry noted.

Are there absolute limits to the speed at which animals can run? Derry used statistical models to analyze running speeds for greyhounds, thoroughbred horses and elite human athletes to answer that question.

“Horse and greyhound speeds seem to have plateaued,” Derry said in an email. “In general, there does appear to be some room for humans to increase their speed, but speeds for women in short races seem to have plateaued already, and speeds at all distances give signs of plateauing.”

Victor Espinoza won the elusive Triple Crown of horse racing in 2015. Find out how he stays fit and why, for jockeys, there is no offseason.

Editor's Note: This story was originally published in 2022.

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