Seabiscuit was one of the most remarkable Thoroughbred racehorses in history. From 1936 to 1940, Americans thronged to racetracks to watch the small, ungainly racehorse become a champion. He had an awkward gait but ran with dominating speed; he was mild-mannered yet fiercely competitive; and he was stubborn until he became compliant. His inferior performances as a young racehorse led to later dominance on the turf. ( )