Ultra marathon running tips; Anton Krupicka's pro hacks
By A Mystery Man Writer
The no-nonsense ultra runner gives it to us straight.
Catching Up With Anton Krupicka - Zeal Optics
UltraRunning Magazine Jan/Feb 2014 by UltraRunning Magazine - Issuu
Running Wild with Ultramarathoner Anton Krupicka - Men's Journal
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20 Best-Selling Marathon Books of All Time - BookAuthority
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