If they win tomorrow they will move up to 10th in the race with 2105 points. The 8th team Verdasco/Marrero in the race have 2500 points. Jamie and John would have to reach at least the SF of Shanghai to move up to 8th within one week. But, Jamie/John and Verdasco/Marrero are both in the same section of the draw so if they meet, its vital Jamie and John win.
I think J & J would be 11th if they win tomorrow, otherwise 12th. Mirnyi & Tecau are in the Beijing final and will go up to 9th place with 2270 or 2470, if I've done my sums correctly! I think also that Marrero & Verdasco will be 7th, just ahead of F & M
Really hope they get the win tomorrow, and keep in with a chance of the WTF. Not sure I'll be following at 4am, but who knows!