Tagged With Ultramarathons

Ultra-marathoners ditch their healthy diets during races, subsisting on chips, Coke, and Twinkies. The strategy reveals a nasty truth about processed food.

These women just ran 135 miles through Death Valley in the 'world's toughest foot race,' with no sleep for 33 hours. They say they'd do it again.

In the Everest ultra-marathon, runners compete at lung-bursting altitudes of 17,000 feet. This year, one runner spent a night outside, alone and without shelter.

This woman ran 144 miles in 48 hours, all around a 1-mile track. Here's how she survived it.

What happens to your body during an ultramarathon

In the midst of the polar vortex, 52 people completed this 135-mile ultramarathon in northern Minnesota ā€” biking, skiing, and running through the coldest corner of America

Only 15 people have ever finished the gruelling and secretive Barkley Marathons ā€” here's what the race is like, according to people who've tried

A world-record holder who runs 100-mile races says the high-fat diet Silicon Valley loves transformed his body and performance

9 of the most extreme endurance challenges in the world

Meet the 42-year-old investment banker who runs 100km ultramarathons for fun

I lost 154 pounds in 11 months and now Iā€™m running ultramarathons ā€“ these are 5 things I learned