Dean Karnazes, known as ‘Ultramarathon Man,’ has run in the South Pole and Death Valley. On Sunday, Jan. 28, 2018, he’ll be at his first Fitbit Miami Marathon.
Dean Karnazes, known as ‘Ultramarathon Man,’ has run in the South Pole and Death Valley. On Sunday, Jan. 28, 2018, he’ll be at his first Fitbit Miami Marathon. Courtesy of Fitbit
Dean Karnazes, known as ‘Ultramarathon Man,’ has run in the South Pole and Death Valley. On Sunday, Jan. 28, 2018, he’ll be at his first Fitbit Miami Marathon. Courtesy of Fitbit