Jamie Donaldson, Sergio Garcia and Marcel Siem will have to achieve something only Rory McIlroy himself has done this season to deny the world number one a second Race to Dubai title in three years.
McIlroy did not play in the first two Final Series events in China as he prepares for his court case with a former management company, and will again be absent from this week's Turkish Airlines Open.
However, the 25-year-old's four victories this season - including his third and fourth major titles in the Open and US PGA Championship - mean he still has an almost insurmountable lead at the top of the standings.
One of his three nearest challengers has to win both in Turkey and at the DP World Tour Championship in Dubai to have a chance of overhauling the Ulsterman.
American Billy Horschel took advantage of the reset points system to win the last two events of the FedEx Cup play-offs and the overall title this year, but Garcia believes there would be nothing wrong with McIlroy wrapping up the title with an event to spare.
"Rory did something quite extraordinary and maybe he deserves to be Race to Dubai champion, even before we play the Dubai World Championship."
If Donaldson won both remaining events, McIlroy would need to finish fifth or better in Dubai.
If Garcia won both, McIlroy would require a top-seven finish while if Siem did the double, 17th would do for the Holywood ace.