When Ironman World Championships age grouper Gill Fullen realized her race shoes might have too many miles on them, she visited the On stand for advice. This is what happened next.

We challenged runners from all over the globe to run one of the world’s most iconic marathons wearing the new Cloudflow — straight out of the box. How did they get on? Find out…

You’ve done it. You're a marathoner. As the cheers die-down and your breath catches back up to you, the feelings of elation can begin to give way to something else: soreness, tiredness, fatigue. So what are the best ways to fast track your marathon recovery time? We found out.

Ben Samuels MSc, Performance Nutritionist at Science in Sport, answers the questions you always wanted to ask about fueling your marathon – from training, to the big race and recovery.

Deciding on the right shoe for long-distance races and marathons is a task not to be underestimated. Here's what some of the world’s best athletes and our lab team have to say about three On fan favorites.

It’s true: slow runs help make you faster on race day. We asked elite coaches and athletes to explain why.

On athlete and employee David Kilgore ran the Rio Marathon in the new Cloudstratus not once, but twice. Back to back. We caught him afterward for the full race report.

On Athlete Margo Malone smashed her debut marathon, winning on a cold and wet Zurich course by nearly four minutes. We sit down for a Q&A with the newly crowned champion.

With so many marathons taking place each year, it can be tricky to know which to choose or when to run. Fall might be the ideal time. The weather is usually a little milder and conditions more favorable for running. However, we can’t promise this is true for every marathon on this list…