In this Sunday, July 12, 2015 photo released by the Brooks Running Company, Scott Jurek, of Boulder, Colo., climbs to the summit of Mount Katahdin near Millinocket, Maine, before completing the Appalachian Trail in what he claims is record time. Jurek, winner of several ultramarathon races, began at Springer Mountain in northern Georgia on May 27. (Luis Escobar/Brooks Running Company via AP)