Elaine Stypula, a 60-year-old runner from Michigan, passed away just seven miles into the brutal 102.5-mile Hardrock 100 race ...

A woman died today during one of the most difficult ultramarathons in the United States. Elaine Stypula, 60, passed away near ...

Officials do not know why a 60-year-old woman died roughly six miles into the storied ultramarathon in southern Colorado ...

Ultramarathon runner Courtney Dauwalter crushed the women’s course record at the Western States 100-mile race, taking more than an hour off the previous best time. CNN values your feedback 1.

Spectators stand on the mountain before sunrise as they wait for runners to climb out of Olympic Valley, Calif., during the first four miles of the Western States 100 ultramarathon on June 29 ...

Spectators stand on the mountain before sunrise as they wait for runners to climb out of Olympic Valley, Calif., during the first four miles of the Western States 100 ultramarathon on June 29 ...

Oswaldo Lopez of Madera, California is cooled by his crew as he runs in the AdventurCORPS Badwater 135-mile ultra-marathon race on July 15, 2013 in Death Valley National Park, California.

Some people start to slow down in their 50’s. And most people aren’t ready for big physical challenges in their 60’s. But Santa Rosa’s Arthur Webb, at 70, is taking on perhaps the most grueling ...