Dean Karnazes to Host The San Francisco Marathon!

I am excited to announce that Dean Karnazes, The UltraMarathon Man, will be the Official Host of The San Francisco Marathon! Dean Karnazes is an inspiration to anyone who has ever achieved a lifelong goal. After running 350 miles without sleep, it's clear that Dean knows how to push the human body to its limit. Visit www.runsfm.com for more tips, advice, and guidance from Dean on how to turn your marathon goals into reality.