The ultrarunning legend takes on the ultimate test of endurance: running 50 marathons in 50 days.

In one of his most ambitious physical efforts to date, Dean Karnazes attempted to run 50 marathons, in 50 states, in 50 days to raise awareness of youth obesity

The Road to Sparta is the story of the 153-mile run from Athens to Sparta that inspired the marathon and saved democracy, as told--and experienced--by ultramara

In his follow-up to the best-selling Ultra-Marathon Man, world-renowned ultra marathoner Dean Karnazes chronicles his unbelievable exploits and explorations in

Dean Karnazes has run 350 continuous miles through three sleepless nights, ordered pizza during long runs, and inspired fans the world over with his adventures.