One of a breed of strong saddle horses developed in the western United States. 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 14.3-16 hands (57-64 in., 145-163 cm) high, weigh 950-1,200 lbs (431-544 kg), and have a calm, cooperative temperament
a small powerful horse originally bred for sprinting in quarter-mile races in Virginia
Racing of Quarter Horses. It originated among British settlers in Virginia shortly after Jamestown was established in 1607. The course was traditionally a quarter-mile (400 m); today there are 11 officially sanctioned races, ranging from 220 to 870 yd (201 to 796 m). Timing is to the nearest .01 second