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
World Marathon Challenge World Marathon Challenge World Marathon Challenge is a multievent marathon competition that involves completing seven full run marathon races on seven continents in seven days. The first World Marathon Challenge was held in 2015, beginning in Antarctica on January 17, 2015, and ending in Sydney. The inaugural event combined the race results from Antarctica, Chile, the United States, Spain, Morocco, United Arab Emirates and Australia. David Gething won the inaugural event with a total time for all seven races combined of 25 hours, 36 minutes and 3 seconds, and an average time of 3:39:26 per race, against a field that