Triathlon Laleu, and (3) a run () in the stadium André-Barbeau. The first modern swim/bike/run event to be called a 'triathlon' was held at Mission Bay, San Diego, California on September 25, 1974. The race was conceived and directed by Jack Johnstone and Don Shanahan, members of the San Diego Track Club, and was sponsored by the track club. 46 participants entered this event. It was reportedly not inspired by the French events, although a race the following year at Fiesta Island, San Diego, California, is sometimes called 'the first triathlon in America.' The International Triathlon Union (ITU) was founded in
Xtreme triathlon Xtreme triathlon Xtreme triathlon refers to a type of triathlon competition where competitors race over distances broadly equivalent to those of an Ironman triathlon (3.8k swim, 180k bike, 42k run). They are by definition held over more extreme courses and potentially more extreme conditions due to the often remote locations and large elevation changes. The original Xtreme triathlon was the Norseman Xtreme triathlon first held in 2003. Many other races have followed on from this and in 2014 the concept of "All XTRI was launched" as a global brand that encompassed Norseman along with Celtman and Swissman. This evolved into