Indoor triathlon a low cost, fun, safe and unstressful way to initiate newcomers to the sport of triathlon. These races sold out quickly, and the series expanded to other universities and the Ontario InterUniversity Triathlon Association (OITA) was born to oversee it. As triathlon's popularity grew in the 90s, other indoor triathlon races began appearing across North America and the world using a similar format to the OITA races. 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
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