Grace Wasielewski is humble about her running—she’s not fast, she tells Runner’s World. Of more than 100 marathons she’s run, her personal best is a 3:29 (which is fast in our book). But the Prospect ...

While we all run for different reasons, many of us do chase the dream of being a fraction faster than we used to be. To get there, you need to step out of your comfort zone. Your body is an eminently ...

Although treadmills do let you vary your running speed, you have to repeatedly reach down and hit the controls in order to do so. The Kickr Run offers a more natural hands-free alternative, in that it ...