The easiest way to make a 10K less challenging on your heart, lungs and legs is to start running 15K on a semi-regular basis. Just as weight lifters manipulate reps, weight and tempo to gradually ...

Strava, the superstar running/cycling app, now has a subscriber-only AI feature that will predict how fast it thinks you could run a 5K, 10K, half-marathon, and marathon. The predictions use a ...