Relentless Forward Progress: A Guide to Running Ultramarathons

By on January 24, 2011 | 1 comment

Thanks for your interest in Relentless Forward Progress: A Guide to Running Ultramarathons by’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, as well as download sample chapters and the table of contents.

Ways to Order Relentless Forward Progress
You can now find Relentless Forward Progress can be found at many book stores, as well as online on

If you prefer eBooks, there’s also a Kindle version that is compatible with most eBook readers, including iPads via the Kindle app.

Finally, there’s an RFP audiobook, as well!

About Relentless Forward Progress: A Guide to Running Ultramarathons
Relentless Forward ProgressMarathons 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.”

Here’s the 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:

Bryon Powell

Bryon Powell is the Founding Editor of iRunFar. He’s been writing about trail running, ultrarunning, and running gear for 15 years. Aside from iRunFar, he’s authored the books Relentless Forward Progress: A Guide to Running Ultramarathons and Where the Road Ends: A Guide to Trail Running, been a contributing editor at Trail Runner magazine, written for publications including Outside, Sierra, and Running Times, and coached ultrarunners of all abilities. Based in Silverton, Colorado, Bryon is an avid trail runner and ultrarunner who competes in events from the Hardrock 100 Mile just out his front door to races long and short around the world, that is, when he’s not fly fishing or tending to his garden.