Imagine adding a part-time job to your already crazy schedule. Turns out your friendly neighborhood triathlete has. Training for an Ironman—a 2.4-mile swim, 112-mile bike, and 26.2 mile run—requires a minimum of 20 hours per week for six months, the equivalent of adding a part-time job to the athlete’s schedule. Even a marathon with its relatively lower physical demands still necessitates four or five hour-long runs, speed training sessions, and at least one 10-plus mile run weekly.
