Running

The Maasai cover ground like no one else. We paid the tribe a visit in Tanzania.

You'll see them in action at the Paris Olympics

Adventure photographer Andy Cochrane shoots the infamous ultra

A necessary deep-dive into the static vs. dynamic debate

The Swiss label isn't really a running brand anymore — and that's by design

Professional ultrarunner Tyler Green on how he prepares for race day, and helps others do the same

Professor Grégoire Millet on earning those famous blood-cell benefits — without decamping to 8,000 feet

Crossing the finish line can yield an oddly hollow feeling. What does it mean?

Carbon fiber technology has played a big part here

Charlie Lawrence can do a lot in five hours. Here's how the ultrarunner set a new world record.

Want to run fast? Have we got a shoe for you.

On stuffed its famous Helion foam into the off-road-stomping Cloudsurfer Trail

Mikael Lindnord recounts the time a dog joined him on a grueling six-day race in Ecuador, which inspired the new movie

Train hard, get a gift card. What's not to like?

Don't fret a missed day. We prefer to monitor weekly mileage.

From the folks who brought you the internet-favorite, wheel foam roller