IRON FITNESS is a 140.6 min. indoor triathlon challenge. The 140.6 minute event is inspired by the 140.6 miles of an ultra-distance triathlon! This event is open to anyone that can swim, bike, and then run/walk for the indicated times. This event is purely for the CHALLENGE and the FUN! Don't miss the chance to earn your IRON FITNESS 140.6 min Indoor Triathlon FINISHERS T-shirt - Register TODAY! NEW! Relay teams are now being accepted. Relays will be limited to one wave.