What is Triathlon?

Therefore, long-distance multi-sport events organized by groups other than the WTC may not officially be called "Ironman" or "Iron" races. For its part, the ITU does not sanction WTC races; however, USAT uses a combination of ITU and WTC rules to sanction WTC's branded events. The Challenge Family brand produces long-distance events around the world, and includes events like Challenge Roth.