5. The best holes are not the longest
Whistling Straits was a brilliant test. And while it certainly helped to be long off the tee on some holes, they were not the ones that changed the tournament. Instead, look to the 355-yard sixth, that McIlroy bogeyed on Saturday, or the 361-yard 10th and 404-yard 13th, that forced Grace and Rose to double bogey on Sunday. These holes are almost driveable for the biggest hitters, but anything off line was punished severely.
