Welcome to the frozen, on fire, wet, barb-wired world of Tough Mudder—where adventure racing starts to look a lot more like hazing
Andy Thom, Alex Patterson, and Jim Nix share advice for running your first Tough Mudder
Everything you need to finish strong
Outside picks the best running blogs of 2011, including Amby's Burfoot's Peak Performance blog at Runner's World
Learn how to control your body temperature and boost performance with a pre-workout routine American Cyclist Peter Stetina swears by.
With temperatures below zero, more than 4,500 feet of climbing, and 9,400 competitors, Wisconsin’s American Birkebeiner is the largest and one of the toughest cross-country ski races in the United...
Cross-country skiers share the 12 secrets of a successful Birkebeiner race
Pick the right fuels so you don't skid to a halt during America's biggest cross country ski race
Coach Bill Pierce's 16-week plan to prepare you for America's biggest cross-country ski race
All professional athletes travel, but most don't have to haul three sports worth of gear around with them when they do. Here's how pro triathlete Mirinda Carfrae makes it work.
Last August, two athletes died during the swim leg of the New York City Triathlon. Since then, articles on event safety have piled up—and two more athletes have lost their lives. Is it time for USA...
Our 12-week program will prepare you to run a personal best
Start training now and destroy your office mates in a New Year’s Day 10K.
Coach Pete Rea and Olympian Abdi Abdirahman share their secrets for running a personal best
Race your heart out without spilling your guts