Koop Jason

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Training Essentials for Ultrarunning: How to Train Smarter, Race Faster, and Maximize Your Ultramarathon Performance

Training Essentials for Ultrarunning

How to Train Smarter, Race Faster, and Maximize Your Ultramarathon Performance

VeloPress (2016)
US$21.95

When elite ultrarunners have a need for speed, they turn to coach Jason Koop. Now the sport’s...