Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Koerner Hal

amazon.com
Cover of Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond

Training Essentials for Ultrarunning

Koop Jason

amazon.com
Cover of Training Essentials for Ultrarunning

The Ultra Marathon Bible

Samuel Nash

amazon.com
Cover of The Ultra Marathon Bible

Relentless Forward Progress: A Guide to Running Ultramarathons

Bryon Powell

amazon.com
Cover of Relentless Forward Progress: A Guide to Running Ultramarathons