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Spencer the marathon dog will be memorialized forever as Boston’s biggest cheerleader. Will his successor, Jimmy the puppy, be ready to wave the flag come race day?

Our initial wear-testing reveals that the Mach 6’s new, light and responsive midsole makes the update fly high. 

Before you groan, ‘Not another thing to add to my week!’—hear us out. This workout can change your running game.

Author Sid Garza-Hillman believes trail running can offer a course correction to the intensity of the digital-infused modern world

Coach Stefanie Flippin dives into how to safely build higher running volume as the spring and summer trail running season quickly approaches

From melatonin to collagen, you can get just about any supplement in gummy form these days. But are they actually worth taking? Registered Dietitian Matt Kadey gets into the squishy science of gummy supplements.

4 Exercises to build a strong and stable foot, improve foot control and reduce shin pain.

The Eritrean-born American distance running star, who is competing for the U.S. at the World Cross Country Championships this weekend, hasn’t visited her home country in a decade

Analytics, data, figures—oh my! Here’s what your sleep tracking information means and how you can use it to better your recovery.

Conducting an aerobic threshold test on the track every 4-6 weeks is a reliable way to measure fitness improvements