When you’re ready to run faster for longer than a mile, you’re ready to try a tempo run. Tempo efforts are “comfortably hard.

The key to faster running may not be in your legs, but in your arms.

Want to run faster, improve your form, and keep your performance consistent as you get older? Experts share the best tips for ...

“Numbers will vary among different experience levels, but when training for a half, someone might be in the 30- to 40-mile range for weekly mileage, whereas for a full, they may get into the 50s or up ...