Philadelphia, PA -- (Sports Network) - Kenny Perry claimed his second win of the 2009 season and moved to a career-best No. 4 in the latest world rankings.

In a week with lots of change in the rankings, the top three remained the same with Tiger Woods followed by Phil Mickelson and Paul Casey.

Following Perry was Sergio Garcia, Henrik Stenson and Geoff Ogilvy, who each dropped one spot. Steve Stricker held steady in eighth, while Jim Furyk was up one to ninth and Vijay Singh dipped a spot to No. 10.

Padraig Harrington held steady in 11th and was again followed by Camilo Villegas, Sean O'Hair, Robert Karlsson and Anthony Kim.

Ian Poulter and Lucas Glover both moved up a notch to 16 and 17, while Rory McIlroy dropped a pair to 18th. Lee Westwood moved up one to 19th, Ross Fisher climbed two to 20th, while Ernie Els fell two to No. 21 this week.

Nick Dougherty claimed his third career European Tour title on Sunday and the win helped him jump 56 places to No. 64 this week.