The first step for most people's journey into the world of Triathlon.  Although the distances may vary, the standard mini or super sprint distance triathlon consists of a 400m (0.25 mi) swim, 10km (6.2 mi) run, and a 2.5km (1.5 mi) run.

The International Triathlon Union (ITU) sanctions and organizes a World Cup series of Olympic distance races (13 in 2004) each year, culminating in an annual World Championship for both elite pro-triathletes, junior pro-triathletes and amateur athletes in 5-year age-groups. The professional world cup races are conducted in a draft legal format for the bike leg while drafting is not permitted at the amateur level.  The standard distance for ITU events are 3.0km (1.86 mi) swim, 80km (49.6 mi) ride, and 20km (12.4 mi) run.

The Half-Iron distance is also known as "medium distance" or 70.3.  It consists of a 1.9km (1.2 mi) swim, 90km (56 mi) ride, and a 21.09km (13.1) run.

The big one that many dream of doing - consisting of a 3.8km (2.4 mi) swim, 180km (112 mi) bike ride, and 42.2km (26.2 mi) marathon run.   Finishing an "Ironman" is probably regarded as one of the worlds highest regarded athletic achievements.

Taking the triathlon off the pavement and into the woods!