
See what athletes, experts, and the media have said about Jason Koop’s book, Training Essentials for Ultrarunning.
Your ultramarathon pacers can make or break your race. Jason Koop shows how to train your race crew.
Koop’s New Book Training Essentials for Ultrarunning Reveals His Unique Training Approach Boulder, CO, USA — April 21, 2016 — 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 […]