Dean Karnazes

Dean Karnazes is an American ultramarathon runner and author best known for popularizing endurance running through his memoir *Ultramarathon Man: Confessions of an All-Night Runner*. He has completed extreme endurance feats, including running 50 marathons in 50 states in 50 consecutive days, and has been recognized as one of TIME magazine’s most influential people.[1][2][8]

Los Angeles, California, United States Aug 23, 1962 Wikipedia Website
memoir sports running