What are all the Marathon classes? When you're trying to secure as much loot as you can physically hold, you need to pick the right class to ensure your team is equipped to tackle every scenario ...

A high school track star enhances his social media presence with his mile-long stunts. By Scott Cacciola As he left his home one morning in December, Amos Kimble informed his father that he was ...

Runner's World is the ultimate resource for runners of all levels, from beginners lacing up their first pair of running shoes to seasoned athletes chasing their next milestone. With decades of ...

Even though I’ve been running for a decade, I still often wonder about—okay, occasionally obsess over—my running form. Is my foot striking the ground properly? Am I moving my arms too much or not ...