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Algebra 1: Concepts and Skills
  Home > Algebra 1: Concepts and Skills > Chapter 4 > Career and Applications > Triathlons
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A triathlon is an athletic competition in which participants complete three different athletic events. The most common form is a race in which participants first swim some fixed distance, then ride a bicycle course, and finish by running a road race.

The distances that competitors swim, bicycle, and run vary. Many races consist of a 1.5 km (0.9 mile) swim, a bicycle course of 40 km (25 miles), and a 10 km (6.2 mile) run.

One of the best-known triathlons is the Ironman Triathlon World Championship, held annually in Kailua-Kona, Hawaii. Competitors complete, in order, a 2.4-mile ocean swim, a 112-mile bicycle course, and a 26.2-mile run. The first competitor to finish the three parts of the race is the winner.

A triathlon is a very demanding physical competition. If you are interested in competing in a triathlon, you should check with a physician to ensure that your health allows you to compete safely. Plan to train ahead of time for the event. You may wish to consult with a physical fitness instructor or personal trainer to plan a training schedule that will adequately prepare you for the event you wish to enter.