Ultramarathons don’t leave much room for mistakes. Don’t learn the hard way: get a jump on training for an ultramarathon with Hal Koerner’s Field Guide to
***Updated and expanded new edition*** An Updated, Interactive Guide to Take Your Running to the Next Level With 20 years of running and competing around the wo
Ready to Run an Ultramarathon? When you consider marathons, do you think, "been there, done that"? Like so many others, do you believe that humans were born to
How to apply an endurance athlete's gritty, perseverant, and positive mental strategies cultivate a winning mindset and achieve success in work, family, athleti
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