Science Kids Fastest Animals On Earth - Cheetah, Pronghorn, Springbok, Quarter Horse and More! The American Quarter Horse, known for its exceptional sprinting abilities, excels at races of 1/4 mile or less, reaching speeds up to 44 mph. With a compact body ideal for quick maneuvers, it dominates Western riding events like barrel racing and calf roping. Renowned for its strength, speed, and versatility, the Quarter Horse is a true athlete and a symbol of American horsemanship.