One-of-a-kind 140.6-mile full distance Iron triathlon relay race. Single-day event to be completed within 15 hours, 7 AM to 10 PM Can be done in teams of up to 10 people and as little as one person. For example: 2 or 3 people could pass off the timing chip to complete the 2.4-mile swim. 4 or 5 people could break up the 112-mile bike ride into 27-mile or less segments. 5K will start at 11:00 am.