At the New Balance Falmouth Road Race, runners were allowed to compete simply by downloading an app on their tablet and hopping on a treadmill.The app, created by Outside Interactive, used video footage to take virtual runners on the actual course from Sunday's race. The goal was to draw runners who couldn't attend in the flesh; for Falmouth, that included 3,000 runners who were turned away this year because of signup limits, along with others who weren't able to travel to Cape Cod.