World's Most Extreme Adventure Races

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World's Most Extreme Adventure Races

From dizzying altitudes to scorching deserts, these 11 ultramarathons, ironman triathlons, and obstacle courses call for almost super human strength.

Pikes Peak Marathon - Colorado Springs, CO

This is not your ordinary semi-flat 26.2 miles. Pikes Peak, a massive 14-er just outside of Colorado Springs, CO, hosts one of the toughest elevation-gain marathons in America. Over its up-and-down course, you’ll gain 7,815 in elevation for the first 13.1 miles—the last three of which are a scramble using hands and feet to crawl up shale. And once you hit the halfway point, the 13.1-mile descent doesn’t get easier— it’s a guaranteed ankle-breaker and knee-twister. Beware of weather, too. At 14,110 feet, lightning and hailstorms roll in with just a few second's notice—even in mid summer. (

Badass Score: 7


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