Doctor shares his experience of running 7 marathons in 7 days. A Wisconsin doctor achieved a once-in-a-lifetime feat this month when he participated in seven marathons on seven different ...

7 marathons, 7 continents, 7 days: Why a cancer surgeon pushed himself to the absolute limit. By Rustin Dodd. Feb. 11, 2025 Updated April 9, 2025.

SIOUX FALLS, S.D. (KELO) — A Flandreau, South Dakota man just accomplished something most people would say couldn’t be done. Bruce Allen ran seven marathons in seven continents in seven days.