Triathlon
A triathlon is an athletic endurance race involving three
sports. These are
usually running, cycling, and swimming. The most demanding
of triathlons is the Ironman. In
this competition participants swim 3.8km
(2.4miles), bike 179km (112miles), and run a full
42.195km marathon (26 mi,
385 yd).
[AM]
{NR}