Martin Kaymer's huge comeback victory HSBC Champions was good enough to move the former world No. 1 to fourth this week.

Kaymer moved up two places in the rankings, while Luke Donald remained in first.

Rory McIlroy shared fourth in Shanghai and climbed to No. 2. Lee Westwood fell to third, followed by Kaymer and Dustin Johnson, who also slipped one to fifth.

Steve Stricker dipped one to No. 6, but Jason Day and Adam Scott both held pat. Matt Kuchar and Webb Simpson switched places this week with Kuchar in ninth and Simpson 10th.

Phil Mickelson and Nick Watney remained in 11th and 12th for the second straight week. Charl Schwartzel and Graeme McDowell both rose one to 13th and 14th, respectively, while K.J. Choi fell two to 15th.

Justin Rose and Bubba Watson traded rankings with Rose moving into 16th. Sergio Garcia kept the 18th spot and Hunter Mahan got up to 19th. Paul Casey shot up two to round out the top 20.