IRONMAN 70.3 Memphis is an endurance sports event held annually in Memphis, Tennessee. The race comprises a 1.2-mile swim, a 56-mile bike ride, and a 13.1-mile run, totaling 70.3 miles of intense physical challenge. The event is held in the month of October and attracts athletes from around the world. The swim portion of the race takes place in the Mississippi River. The current is generally mild, but athletes should be prepared for changing water conditions due to river traffic and possible ...