The top 20 had plenty of movement this week. Tiger Woods and Phil Mickelson remained the No. 1 and 2 players in the world.
Former world No. 1 Vijay Singh slipped to fourth this week and was replaced in third place by two-time U.S. Open winner Retief Goosen.
The next eight players were unchanged with Ernie Els in fifth, followed by Sergio Garcia, Jim Furyk, David Toms, Adam Scott, Luke Donald, Chris DiMarco and Jose Maria Olazabal.
Henrik Stenson climbed two spots to 13th this week. South African Tim Clark remained in 14th, while Bob Hope Chrysler Classic winner Chad Campbell was down two places to 15 this week.
Geoff Ogilvy and David Howell both inched up one place to 16 and 17 this week, while eight-time European Tour Order of Merit winner Colin Montgomerie fell two notches to 18th.
Kenny Perry and Darren Clarke exchanged positions from last week with the injured Perry up to 19 and the Ulsterman down to 20th.
Gonzalo Fernandez-Castano earned his second European Tour win last weekend at the BMW Asian Open and jumped 49 places to No. 64.