An Olympic distance triathlon involves a 1.5km swim, 40km bike ride and 10km run. The winner completes this course in the quickest time

Triathlon is a multi-sport endurance event consisting of swimming, cycling and running

The first modern long-distance triathlon was the Hawaiian Ironman Triathlon, which involves a 3.8km swim, 180km bike ride and 42km run

The current men’s Hawaii course record is held by Luc Van Lierde from Belgium whose winning time was 8 hours 4 minutes and 8 seconds. The women’s course record is held by Chrissie Wellington from Great Britain whose winning time was 8 hours 54 minutes and 2 seconds