The IRONMAN World Championship is an iconic one-day test of body, mind and spirit. It’s a full Ironman distance triathlon race. How long is the Ironman World Championship? It’s 140.6 miles (226.2 km) long – the 2.4-mile Waikiki Roughwater Swim, 112 miles of the Around-O’ahu Bike Race and the 26.2-mile Honolulu Marathon—into one event. Approximately […]