1–2 Mar 2025 258 days to go! #BostonRunShow

Dean Karnazes

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.