Indoor triathlon Indoor triathlon An indoor triathlon is a nonstandard variation of the triathlon and consists of three events: swimming, cycling, and running. The swim is held in an indoor pool, the cycling takes place on stationary bikes, and the run takes place on an indoor track or treadmill. Indoor triathlons are generally held in fitness clubs to accommodate all three sports. In some competitions participants are judged by the distance they travel in each event in a set amount of time. Times can vary between races. On other occasions, the triathlon is conducted in the same manner as an outdoor triathlon
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.