Nothing.
The best player over the 4 days won.
I agree with Rich re: best player - Rose played 18 brilliantly in a Hogan 'esque' way.
It was different and pleasing to see the course foliage rather than a horde of spectators at the back of the green like on 10.
Merion is one of those rare courses where you really have to think where to place the ball on the green to get close to the flag
rather than just bomb at the flag. Rose had a very good game plan especially playing irons off the tee on 15 and 16. The drive on 18 was full of fist pumping for us in Blighty!
The US Open is the US Open where par or thereabouts is the winning score and players know this. Merion was the winner this week. Moving the fairways on 2 and 15 made it more exciting irrelevant of what purists say - I have never seen Stricker go OOB and then shank on the same hole!
This was the best US Open I have seen for years rather than have par, par, par we had birdie, bogey, par, double bogey, eagle the whole lot and not one hole in one on 13 but so many dramatic near misses.
The Philly fans made 25000 sound like 50000! Imagine what it would be like if the Ryder Cup was at Merion!
Rose made the fewest mistakes yesterday and I would not be surprised if he wins another major.
Cheers
Ben