Relentless Forward Progress book cover

Essential Ultramarathon Guide

Audio Books

Relentless Forward Progress

by Bryon Powell

This comprehensive guide takes runners from their first ultramarathon training steps through to the starting line and beyond.


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About the book

Drawing on insights from elite athletes, coaches, and sports scientists, it demystifies the world of ultra-distance running with practical advice on everything from training schedules and nutrition to gear selection and race-day strategy. What sets this resource apart is its accessible approach to a seemingly extreme sport. Whether tackling a first 50K or preparing for a gruelling 100-miler, runners will find detailed guidance on building endurance, preventing injury, and developing the mental resilience required when the going gets tough. The book covers the unique challenges of trail running, including navigation, mountain terrain, and running through the night. Essential reading for anyone curious about pushing beyond the marathon distance and discovering what lies on the other side of conventional running.

Book details

Audiobook Narrated by Patrick Lawlor 6 hrs and 58 mins