I pretty much understand how the 52-week rolling ranking system, but I'm still a little confused about the "race to London." How did Nole get ahead of Federer? Isn't Federer still ranked number one in the world? Right, then why why does Nole have such a big lead in the race to London? They both have one slam, Fed's got one more MS 1000? Is it just that Nole has two slam finals? That Fed he flamed out in Miami? Are there any number crunchers that can weigh in? Also, so the way I understand it is that the only thing that counts for 2012 is everything in 2012 plus 2011 DC finals. So if Fed takes Shanghai or Bercy, the WTF itself could decide the YE number 1, right? Because unlike the other tournaments, it doesn't stay on the "books" right through the tournament happening the next year. I'm assuming that's why Fed, while currently ranked number one, will take a big hit after Bercy, because his WTF win from last year will fall off. I don't know. Just thinking out loud. Let me know if I've missed any salient points.