Endurance

Heart Smarts

Training with a heart-rate monitor can be daunting to master, but it’s the best way to make the most of your workouts.

Transition Time

Triathlon is booming. Here's why you should dump your ordinary routine and make the switch, too.

Sprint Start

Want to do a triathlon? Start with a sprint.

Tri Tips

Five ways to make the most of your first sprint triathlon race

The Endurance Freak

Outside picks the best outdoor digital media for the Endurance Freak.

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