Koop’s New Book, Training Essentials for Ultrarunning, Reveals His Unique Training Approach When elite ultrarunners have a need for speed, they turn to coach Jason Koop. Now the sport’s leading coach makes his highly effective ultramarathon training methods available to ultrarunners of all abilities in his new book, Training Essentials for Ultrarunning. Koop’s book is… Read more »
Jason Koop leads an ultramarathon training revolution
