Iron War: Dave Scott, Mark Allen, and the Greatest Race Ever Run

The 1989 Ironman World Championship was the greatest race ever in endurance sports. In a spectacular duel that became known as the Iron War, the world's two strongest athletes raced side by side at world-record pace for a grueling 139 miles.

Driven by one of the fiercest rivalries in triathlon, Dave Scott and Mark Allen raced shoulder to shoulder through Ironman's 2.4-mile swim, 112-mile bike race, and 26.2-mile marathon. After 8 punishing hours, both men would demolish the previous rec…