Ultra-triathlon body of Ultra Triathlon. Ultra-triathlon An ultra-triathlon is a long-distance triathlon. The term generally refers to all triathlon events of distance greater than the Ironman Triathlon. Thus, every ultra triathlon event must involve more than of swimming, of cycling, and a full marathon () of running. The most common distances are the double, triple, quadruple, quintuple and deca triathlon. Unlike a standard triathlon event, an ultra-triathlon event may not necessarily involve the three component disciplines of triathlon (swimming, cycling and running) in direct consecutive order, but may instead consist of multiple consecutive individual triathlons performed on consecutive days. The IUTA
USA Triathlon annually since 1982. In 2014, the USA Triathlon Age Group National Championships in Milwaukee, Wisconsin, drew 5,700 registered participants. USA Triathlon's mission is to grow and inspire the triathlon community. USA Triathlon's vision is to provide the resources required for all in the triathlon community to reach their full potential. USA Triathlon is a member-based organization founded in 1982. At the end of 2013, USA Triathlon reached a record-high 174,787 annual members, up 5.5 percent from year-end 2012. USA Triathlon has seen steady membership growth since 1995, impacted greatly by the addition of triathlon to the Olympic Games in 2000.