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Junyong Pak, winner of World's Toughest Mudder, shares his secrets
Twelve things you should know about surviving in the woods. Just in case.
Running the treadmill this winter? Here's everything you wanted to know about training on one.
Sick of running solo? Here are the best races to sign up for in a team.
1,000 racers. 24 hours. One goal—worldwide bragging rights.
Break up routine and test yourself with one of CrossFit's benchmark workouts - the Baseline WOD.
Thought Tough Mudders were hard? Think again.
Thought hiking was hard? Just talk to the guy who's walked around the hottest place on earth.