Dean Karnazes Run Show preview interview with Fitz Koehler

Ultramarathoner Dean Karnazes was named by TIME magazine as one of the 100 Most Influential People in the World. He has raced an competed on all seven continents, and once ran 50 marathons, in all 50 of the US states, in 50 consecutive days. A frequent speaker and New York Times bestselling author, Dean lives with his wife and family in Northern California.

Dean is speaking at the National Running Show, Jan 21-22 at the NEC in the UK and the Run Show Boston, Feb 4-5, 2023 at the Hynes Convention Center, Boston, MA.