The length of each stage of a triathlon, including swimming, biking and running, depends on the specific triathlon. Variations on the triathlon include the Ironman Triathlon, the Half Ironman Triathlon, the International Distance Triathlon and the sprint triathlon, which is viewed as a beginner or entry-level triathlon.
As of 2014, it takes the average triathlete 12 hours and 35 minutes to complete the Ironman Triathlon. The athlete must swim 2.4 miles, bike 112 miles in 6 minutes, 25 seconds, and run 26.2 miles. The Half Ironman Triathlon takes 6 hours to complete on average and requires half the distances of the Ironman. The International Distance Triathlon takes about 3 hours on average and involves a 1.5-kilometer swim, a 40-kilometer bike ride and a 10-kilometer run.
A typical sprint triathlon consists of a 400-meter swim, a 20-kilometer bike ride and a 5-kilometer run. For a novice triathlete, it takes about two minutes per 100 meters for the swim, an hour for the bike ride and approximately 30 minutes for the run. Including five minutes for each transition, the total time for a beginner to complete a sprint triathlon is about 1 hour and 50 minutes. An advanced sprint triathlete could complete the same course in about 1 hour and 15 minutes.