Get ready to rock 'n' roll at the IRONMAN 70.3 Memphis! This epic endurance event in Memphis, Tennessee is not for the faint of heart, but it's guaranteed to be a blast. With a 1.2-mile swim in the mighty Mississippi River, a 56-mile bike ride through scenic Memphis, and a 13.1-mile run through downtown and along the river, you'll be challenged every step of the way. The swim course starts in Harbor Town and finishes at Tom Lee Park, where you'll transition to the bike course. The swim is a ...