Breed of horse popular as a harness racer.

An American breed of horse developed for harness racing.

The breed of horse used in harness racing, consisting of trotters and pacers. The term originates from the standard set in 1879 by the National Association of Trotting Horse Breeders in America, whereby a horse had to trot a distance of one mile in not more than 2 minutes 30 seconds to qualify for registration in the new breed.

A breed of horse which participates in harness racing.

Most harness racehorses in Britain, North America and Australasia are 'Standardbreds', so called because the American harness studbook, begun last century, used the ability to cover a mile in a 'standard' time (initially 2 min 30 secs) as the criteria for entry. In Europe the French Trotter, the Sandinavian 'cold-blood' and the Russian Orlov are also used in harness racing, though Standardbreds and Standardbred crosses predominate everywhere except in France.