Add Yahoo as a preferred source to see more of our stories on Google. United States ultramarathon runner Courtney Dauwalter runs through the mountains near Twin Lakes, Colorado. Dauwalter sits at the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. It's the original 100-miler, but that's not the only thing that makes this iconic trail race ...

A marathon is never easy, so progressing to running your first ultra marathon (or simply, ultra) will seem pretty daunting. There may be marathon in the name, but in reality, running your first ultra ...

Maybe you jog for exercise. Maybe you've run 10Ks or marathons. But you haven't run nearly as far as this Utah man. Despite all odds, Eric Johnson has really gone the distance.

From muscle fibers to mental grit, here’s the science behind why some bodies can endure ultramarathons, while others hit the wall far sooner. Ultramarathons sit at the far edge of what the human body ...

As amateur runners swap city roads for brutal mountain peaks, India’s ultra-running culture is reaching new heights ...