Three runners arrived at MedStar Health’s South Baltimore physical therapy clinic April 15,  refueling with soda and orange ...

The 135-mile Badwater ultramarathon in Death Valley accepts no more than 100 runners each year. Here's what it was like, according to two finishers.

Chinese runner Huang Zhenglong completed 10,000 km in 100 days, running 2.5 marathons daily to break an incredible stamina world record.

Camille Herron, 42, is one of the world's top ultramarathon runners, having set 12 world records and becoming the youngest woman to reach 100,000 lifetime running miles. But now, the American athlete ...

A 35-year-old ultramarathon champion died while attempting to beat the record for a race to the most north-westerly point on ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

After four days, the G1M Ultra came down to a battle between two athletes surpassing the 300-mile mark.

Add Yahoo as a preferred source to see more of our stories on Google. The Independent's senior fitness writer Harry Bullmore running his first ultramarathon trail race, the Northburn100 50K in New ...

David Parrish, 35, was found dead on Saturday at around 10.25pm in the Kintail region after mountain rescue teams launched a ...

A runner aims to spend over 24 hours on his feet taking on a 108-mile (174km) ultramarathon challenge to raise money for ...

Over a foot of snow fell at one of the peaks during the race in Utah's Davis County on Saturday All 87 participants in an ultramarathon race in Utah's Davis County were rescued from the trails on ...