Relentless Forward Progress: A Guide to Running Ultramarathons
Thanks for your interest in Relentless Forward Progress: A Guide to Running Ultramarathons by iRunFar.com’s Bryon Powell. On this page, you can purchase the book, jump to the resources promised in the book, and learn more about the book (here’s the first review), as well as download sample chapters and the table of contents.
Ways to Order Relentless Forward Progress
Since you’re here, you could get your copy of the book directly from its author by placing an order below. If you order here and would like an autographed copy, please indicate so in the special instructions section during checkout along with any custom inscription you would like. Shipping is included in the price and varies based on the destination country.
If you prefer eBooks, there’s also a Kindle version that is compatible with most eBook readers, including iPads via the Kindle app.
Relentless Forward Progress can also be found at many book stores, including for about $10 on Amazon.com!
About Relentless Forward Progress: A Guide to Running Ultramarathons
Marathons have become too easy for some runners. What was once the pinnacle of achievement in a runner’s life is now a stepping stone for extraordinary adventures in ultramarathoning. The number of ultrarunners—those running distances of 50k (31 miles), 50 miles, 100k (62 miles), or 100 miles—is growing astronomically each year.
Dean Karnazes’ Ultramarathon Man and Chris McDougall’s Born to Run have inspired tens of thousands to try these seemingly superhuman distances. But to date, there has been no practical guide to ultramarathoning. Now, Bryon Powell has written Relentless Forward Progress, the first how-to manual for aspiring ultrarunners. Powell covers every aspect of training for and racing ultra distances. This encyclopedic volume prepares runners for going farther than they have ever gone before and, in the process, shows them that they are capable of the “impossible.”
If you want to know what others are saying, take a look at this reviews and interviews page that I’ve pulled together. To save you some time, here’s the first review of Relentless Forward Progress penned by Matt Fitzgerald (author of Racing Weight and many other books) for Competitor. In short, Fitzgerald wrote, “I can think of nothing that would give me more confidence going into my first ultramarathon than having read this book. Nothing is left out.”
Samples of Relentless Forward Progress
Get a sneak peak of Relentless Forward Progress with the following samples:
- Table of Contents (pdf)
- Chapter 1 (pdf)
- Chapter 2 – partial (pdf)


