Endurance

When a man loses his brother-in-law to mental illness, he challenges himself to run 50 mountain marathons in 50 days, resulting in a movie, and…

When a relatively unknown runner defeated a reigning Olympic gold medalist earlier this month, it revealed a secret even weekend warriors can use to their…

Run a mile, drink four beers along the way. Now the burgeoning ‘sport’ of the beer mile has its first pro athlete from Canada, the…

Meb Keflezighi is among the planet’s fastest distance runners. He paused to offer tips on training and racing fast.

Data from the world’s 12 most active Strava cities gives a peak into residents fitness — and daily lives.

The Salomon/GearJunkie ‘CITYTRAIL’ Race challenged runners with hidden clues and navigational feats.