A new study compared athletes who used compression socks for recovery to those who didn't, and the results were pretty clear.

A recent study examined the relation between age, length of race, and performance in ultra-marathoners.

A review of almost 100 studies found iron supplements may be especially important for runners, but not in high doses.

Modern cavemen are all the rage. Paleo-eating guys with beards trying to reconnect with their inner savage. But are they missing the most important step?

If you're looking for articles or workouts for endurance sports, we've got the experts and materials for you.

Think of training as currency. Once we spend it, there’s little chance to get it back. In the case of running, many of us overspend and wonder why we have essentially gone broke.

Surprising research shows longer races might be safer and less damaging to athletes.

Thinking about running your first marathon? A recent study investigates the best way for novice and intermediate runners to train for a marathon without getting injured.

The adventure and obstacle-racing phenomenon is without question one of the shining and rising stars in fitness in recent years. What's behind this popularity?

New research tells us a bit about the participants in two of the world's most infamous ultra-endurance events: the Spartathlon in Greece and Badwater race in Death Valley.

Last weekend was the LA Marathon and it was the most enjoyable race I've done in a long time, if not ever. I set a PR for the course and met all the goals I had hoped to achieve.

In honor of our writer Andrew Read doing the Iron Man Melbourne this weekend, we're sharing one of his favorite videos. Meet David Goggins, U.S. Navy SEAL and ultrarunner.

C’mon body, just two weeks to go. One more big dance and I promise I won’t do anything too stupid to you for the rest of the year.

I met a new friend during one of my training sessions and it got me thinking about my goal times for the Ironman - which is only three weeks away now.

Finally this past week, I received quantifiable verification that my plan is working. It came just in time - only two weeks until the LA Marathon!

This week I decided to leave the GPS at home, take off my watch, and just run. With all that freedom to just enjoy myself, I think I fell in love with running all over again.

Forget your "Couch to 10K" article. Here's the way to become a runner. It'll take time, but you'll avoid injury - especially if you're older than 35 - and complete your race, mud run, or triathlon.