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We spoke to Jed Mildon after he landed the quadruple backflip.
In "nature's toughest challenge," runners race around Mont Blanc.
Should You Do a Tough Mudder, Spartan Race, or Warrior Dash?
A 'Death Race', a Gran Fondo, salmon fishing in Alaska, and more.
A down-and-dirty guide to the best obstacle racing gear.
You need to train right to ace this race. We show you how.
New Animal Planet documentary shows just how far the human body can go.
It can help you shave 26 minutes off your triathlon time.