Triathlon Training Guide: Ironman Programs, Gear and Nutrition

Ironman triathlon training requires a balance of endurance swimming, cycling, and running with a focus on high-calorie nutrition. Learn how to prevent chafing and choose the best beginner triathlon bikes for your first race.

The Top 10 Toughest Triathlons

Published Jul,08 2011 | By Dan Harriman

The distance of a triathlon is not necessarily the only factor in determining its toughness. The environment often plays a more important role. An ultradistance triathlon, of which the Ironman is the most recognized brand, includes a 2.4-mile swim, a 112-mile bike ride and a 26.