Going from almost missing the cut to the lead in one round. A very impressive 63 by Mr. Ogilvy has done just that for him.
The toughest thing in golf for amateurs is hitting out of the sand(will touch on that subject this week), but the toughest thing for pros is to follow up a really low round.
I am not talking about following a 62 with a 64 when the course is playing easy and everyone is shooting low. I am talking about the 63 that Ogilvy shot when it was one of only two rounds under 67 for the week. The other being the opening round 64 by Luke Donald that he followed up with a 76.