Traditionally held on the first Saturday in May, the Derby marks the first leg of the Triple Crown. The 20-horse field features only 3-year-olds running the 1 ¼ mile stampede for a chance to compete for their share of the $5 million purse.

LOUISVILLE, Ky. — The Triple Crown is a rare accomplishment achieved by just a small handful of horses and jockeys throughout history. In fact, just over a dozen horses in total have won all three races required for the title.