This competition is tough one to predict because there are just too many questions for both sides right now.
Questions on the Men: What will Fed's form be? Is Rafa out of steam? Will Rafa's limitations on hard courts finally knock him down? How will Nole deal with last week's loss in Cincy? How will Nole deal with the conditions? Can Andy continue his run?
Questions on the Women: Who's injury free and who isn't? How is Ana's thumb? How's Serena's knee? Can JJ deal with the added pressure of having to perform under the scrutiny of #1? How much is left in Dinara's tank?
Fed's Quarter: He's got a tricky draw that should see him come through, but then again, who knows with his form these days. First round sees him up against the solid-on-hard-court Tursonov and he's got a potential second round rematch with either big serving Dr. Ivo. or Athens nightmare Tomas Berdych. On the other side of his quarter are James Blake and Gilles Simon. Like I said, he should make it through, but who knows? I'll pick Fed to get through, but my dark horse is Simon.
Ferrer's Quarter: David Ferrer and Kolya are both in this draw but Kolya will get dumped early, very likely in his first round match with Ernests Gulbis. Gonzo and Janko are also in this quarter. This draw in particular is a crapshoot. I really want to see Ernests make a run here and he has the game to do it. Whether he has the focus is another issue. I'm going to go with Ernests to get out of this quarter.
Rafa's Quarter: The draw isn't doing the future #1 any favors and he has the toughest road of all the top seeds. Not only is the surging Andy Murray there, but also Igor Andreev, Lleyton Hewitt, and Radek Stepanek. Andy Murray should have an easy go until he potentially meets Rafa in the quarters. Either way, I pick Murray.
Nole's Quarter: If Nole can endure the heat and smog, he should come through to meet either Rafa or Muzza in the semis. The other top seed is David Headbandian, who is coming off injury and I doubt he will be on form. He could have a tricky matchup with Kei Nishikori in the second round. I'm really worried about his fitness in these conditions, but I'll go with my boy Nole.
Semifinals: Fed vs.Gulbis, Andy vs. Nole
Gold Medal Match: Fed vs. Andy
Gold Medal: Andy
Bronze Medal: Nole
Ana's Quarter: Who knows how Ana's thumb will hold up. That's the big question mark for this quarter. If it's feeling even 80% she should be able to breeze to the semis. There's a potentially tricky matchup with Tati Golovin in the second round, but she's coming off injury and I doubt that she'll be match fit. The biggest obstacle will be Agi Radwanska, who could run Ana all over the court and force her to go for winners in order to shorten the rallies. One of those two will come out of this quarter, but since I'm an Ana fan, I'm going with her.
Serena's Quarter: This is a potentially a tough quarter for Serena, who is coming off the knee injury that forced her out of Stanford. Who knows where she's at. In addition, she'll have to deal with Nicole Vaidisova, but no one ever knows which Nikki will show up. Athens silver medalist Lena D. waits on the otherside. She got dumped out of Montreal in the first round by eventual runner-up Domi Cibulkova.
JJ's Quarter: Just like Rafa, the draw is not kind to the future #1. She has by far the toughest draw. Dinara waits on the other side and you'd be stupid to bet against her to make it through her section easily, though Lindsay could meet her in the second round, and hometown favorite Zheng Zie could meet her in the quarterfinals. As for JJ, she should have some easy matches until the third round rematch with Cibulkova. It doesn't matter though. I put my money on Dinara to get out of this quarter.
Kuzzie's Quarter: Other than a tricky first round match with Li Na (never underestimate the Chinese on home soil), Kuzzie should make it through to the quarters easily. She showed good form in Montreal and it seems that her knee injury wasn't bothering her. On the other side of the quarter is Venus, who hasn't played a match (other than World Team Tennis) since Wimbledon. I put my money on Kuzzie beating Venus in the quarters.
Semifinals: Ana vs. Serena, Dinara vs. Kuzzie
Gold Medal Match: Serena vs. Dinara
Gold Medal: Serena
Bronze Medal: Ana
All this being said, with so many unknown factors this really is a crapshoot. Given the conditions, it would not shock me if a Gilles Simon or an Agi Radwanska won the whole thing.