He won the race by 4 seconds, Davis getting cut off didnt take 4 seconds off his time, if you watch the race: http://www.youtube.com/watch?v=-cNL7IEJDpM is in the bottom half of the runners most of the race, maybe if he went earlier he could have caught Nate, maybe not, but him cutting Davis off did not take 4 seconds of his time, unless he got boxed in, which is his own fault.