Breed of light horse developed in the U.S. from Thoroughbred , Morgan , American saddlebred , and other stock as a quarter-mile racer.
Though overshadowed by the Thoroughbred, it found a place in the western and southwestern U.S. as a stock horse (see cutting horse ). Modern quarter horses are short and stocky, with a muscular build and a deep, broad chest. They are noted for fast starting, turning, and stopping ability, short-distance speed, and intelligence. They stand 14.316 hands (5764 in., 145163 cm) high, weigh 9501,200 lbs (431544 kg), and have a calm, cooperative temperament.