Montgomerie carded a one-under 71 on Sunday to secure the victory, which vaulted him seven places to 16th on the list. This week's other big mover was K.J. Choi, who moved up 17 spots to No. 30 after a win at the Chrysler Classic of Greensboro.
Little changed in the top-10 as usual, with Tiger Woods hanging onto the No. 1 spot followed by Vijay Singh, Phil Mickelson, the injured Ernie Els and Retief Goosen.
Sergio Garcia remained sixth, Adam Scott held onto seventh and Chris DiMarco was eighth again. But there was a little change after that, as Angel Cabrera and Kenny Perry each moved up one place to ninth and 10th, respectively, to round out the top-10.
That movement dropped Jim Furyk two places into the 11th spot, where he was followed by David Toms, Padraig Harrington, Michael Campbell, Luke Donald, Montgomerie, Darren Clarke, Tim Clark, David Love III and Fred Couples.