Relentless Forward Progress: A Guide to Running Ultramarathons [Audiobook] by Bryon Powell
English | January 24th, 2018 | ASIN: B078J7M8VF, ISBN: 1541467825 | MP3@64 kbps | 6 hrs 58 mins | 192.10 MB
Narrator: Patrick Lawlor
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 adventure 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.