FKT Up? Kilian Jornet's Insane New Sport

With warp-speed ascents that include the Matterhorn (1:56) and Denali (9:43), ultrarunner turned alpinist Kilian Jornet Burgada is the king of the endurance world's latest obsession: fastest known...

The Fastest Celebrity Runners at the NYC Marathon

Sunday, tennis star Caroline Wozniacki — this year’s US Open runner-up —will be racing her first marathon, only a week after a semi-final loss to Serena Williams at the World Tennis Association...

This Is How You PR at Age 41

Earlier this fall, Deena Kastor added a World Masters Record in the half marathon to an already impressive resume.

Train Slower, Race Faster

New research suggests that most endurance athletes—even weekend warriors—must slow down to get fast.

The Running Lawsuit You Need to Follow

Late last month, Competitor Group Inc., the San Diego-based parent company of the Rock 'n' Roll Marathon series, was sued for using volunteers in place of paid workers. The suit was filed in Missouri...

The New Injury-Proofing Rules for Runners

Renown physical therapist Kelly Starrett lays out movement standards for runners. Meet them, and you'll stay out of his office. Don't meet them, and you shouldn't be running.

10 Secrets to Make You a Faster, Happier Runner

First it was the 5K. Then came the marathon. Now, the need-to-run race is the ultramarathon. When you are putting that many miles in a day, there are definitely some tricks of the trade you need to...

8 Training Secrets from Meb Keflezighi

Last April at the Boston Marathon, when at the seven-mile mark Meb Keflezighi pulled away from one of the strongest fields in the race’s 118-year history, the other elite runners let him go.

Running Blind in the Grand Canyon

In 2007, Dan Berlin's sight took a turn for the worse. His lifestyle changed. He gave up his driver's license and started using a mobility cane. He also started running.

Why Everyone Breaks Records at Berlin

Running in excellent conditions yesterday in Berlin, Kenya’s Dennis Kimetto broke the world record in the men’s marathon, clocking a time of 2:02:57.

Your Brain on Pain

The Nolan's 14 and how we are hardwired for adventure.

Trick Your Brain to Run Faster

Speed isn't just the result of physical preparation. Training the brain to actually allow the body to run fast is another big part, as well. Author Pete Magill shares his insights to "convince your...

Ultrarunning's Humble Champion

With a series of impressive 100-mile wins under his belt and perhaps the most fitting name ever bestowed upon a shoe-salesman-slash-ultrarunner, Mike Foote seems to be doing everything right.