It’s one thing to run a marathon for 26.2 miles. But what possesses some people to run 100 miles or more, and do it again and again? “Salvation,” answers Amy Mower in a new book about ultramarathon running, “or at least a very good time.”


It’s one thing to run a marathon for 26.2 miles. But what possesses some people to run 100 miles or more, and do it again and again? “Salvation,” answers Amy Mower in a new book about ultramarathon running, “or at least a very good time.”