The 1989 Ironman World Championship was the greatest race ever. In a spectacular duel that become 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 the Ironman 2.4-mile swim, 112-mile bike race, and 26.2-mile marathon. After 8 punishing hours, both men would demolish the previous record—and cross the finish line just 58 seconds apart. The race would redefine the limits of human endurance and the role of mental toughness in sports. In his new book Iron War, sports journalist Matt Fitzgerald writes a riveting epic about how Allen and Scott drove themselves and each other through the most awe-inspiring race in sports history. Iron War goes beyond the pulse-pounding race story to offer a fascinating exploration of the lives of the world's two toughest men and their unquenchable desire to succeed. Weaving an examination of mental resolve into a gripping tale of athletic adventure, Iron War is a soaring narrative of two champions and the paths that led to their stunning final showdown.