The Ultrarunning Edge site is dedicated to extending the art and science of ultrarunning through better gear, improved ways of utilizing gear, advancements in aerobic exercise physiology, more effective training approaches, and better nutrition.

Whether you run long self-supported expeditions on wilderness trails, or you’re an experienced mid-pack runner of lengthy ultramarathons, an elite distance trail racer, or a newbie, we can all benefit from better approaches to ultrarunning. The content here draws from many years experience with endurance sports competition (trail running, road cycling, mountain biking, nordic skiing), extensive knowledge of biochemistry, biophysics, medicine, nutrition, and engineering, and lots of great input from the ultrunning community.