Dean Karnazes

50/50: Secrets I Learned from Running 50 Marathons in 50 Days.

Dean Karnazes

Talk: 50/50: Secrets I Learned from Running 50 Marathons in 50 Days.

"Dean Karnazes is Time Magazine's 27th Most Influential Person in the World and ESPN's Outdoor Athlete of the Year. In the Fall of 2006, Dean Karnazes, known as the ""Lance Armstrong of the running world,"" took on the ultimate challenge: running 50 marathons in 50 states in 50 consecutive days. Dean set off in a caravan packed with fellow runners, with nothing more than a roadmap and a determination that defied all physical limitations. 50/50 goes beyond the incredible story of these 50 marathons. It is a firsthand account of what happens when your body defies all limitations, and it is a fascinating story of what it's like to push the limits of strength under grueling conditions.

Dean Karnazes

Dean Karnazes, is an American ultramarathon runner, and author of Ultramarathon Man: Confessions of an All Night Runner, which details ultra endurance running for the general public.

The Book

Packed with practical advice and including training regimens, 50/50 will inspire you no matter what your fitness goal is, whether it's simply walking around the block, running a 10K, or completing yet another Ironman.

Find out more