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 is the official governing
International Triathlon Union Triathlon World Championships was held giving the sport of winter triathlons its own world championship. Then in 1998 the Aquathlon World Championships were inaugurated giving aquathlon its own world championship. In 2009 the Triathlon Mixed Relay World Championships was held to organise an elite level international relay. The most recently created tournament is the Cross Triathlon World Championships similar to the long distance it was created to allow the sports governing body to have a world championship instead of XTERRA Triathlon. The world championship events organised by the ITU include: International Triathlon Union The International Triathlon Union (ITU) is the