The Belmont Stakes was a famed horse race, first held in 1867 in New York on Earth and continuing annually into the late 23rd century. The Belmont, along with the Kentucky Derby and the Preakness, make up the Triple Crown.
In 2296, while being held by Romulan soldiers on planet Obsidian, Leonard McCoy spoke at length about the sport of horse racing in order to forestall his execution. (TOS novel: Vulcan's Forge)