The most important thing you learn as a sports photographer is anticipation - not where the action is taking place but where it's going to take place. Not where the subject is now but where they're going to be.
The Romantic poets were the prototype ramblers and I've often found myself following in their footsteps - although perhaps not all of their footsteps since a typical walk for Samuel T. Coleridge might last two days and cover 145km.