The fight for the #1 spot is heating up. Nole still the clear front-runner but he also has a lot to defend between now and the USO.
In the table below I look at where each of the top 4 will be at various points this summer after they drop the points from the tournaments between now and then.
Djokovic | Nadal | Federer | Murray | |||||
Now | 11,000 | 8,905 | 11,075 | 7,460 | ||||
after Cincy | 9,400 | 8,715 | 10,805 | 6,450 | ||||
after USO | 7,400 | 7,515 | 10,085 | 5,730 |
So, for example, in the "after Wimb" row we see Djoker having 850 point lead on Federer (9,080 to 8,230). So if Federer wants to be ahead of Nole after Wimbledon, he will need to outperform him by at least 850 points between now and then.
Note that I did not attempt to handle the issue of countable/non-countable tournaments, so the true point totals may be slightly different.