Endurance

Yes You Can: Run a Tough Mudder

Welcome to the frozen, on fire, wet, barb-wired world of Tough Mudder—where adventure racing starts to look a lot more like hazing

2. Peak Performance

Outside picks the best running blogs of 2011, including Amby's Burfoot's Peak Performance blog at Runner's World

The Pre-Workout Cooling Routine

Learn how to control your body temperature and boost performance with a pre-workout routine American Cyclist Peter Stetina swears by.

Yes You Can: Ski the Birkebeiner

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...

The Birkie Dozen

Cross-country skiers share the 12 secrets of a successful Birkebeiner race

Birkebeiner Training Plan

Coach Bill Pierce's 16-week plan to prepare you for America's biggest cross-country ski race

How do pros travel with triathlon gear?

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.

There's Something in the Water

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...

10K Training Plan

Our 12-week program will prepare you to run a personal best

Yes You Can: Run a 10K

Start training now and destroy your office mates in a New Year’s Day 10K.