Tiger Woods makes his return to the tour this week for the first time since the terrorist attacks on America over a month ago. He remains comfortably in first, ahead of Phil Mickelson, David Duval and Ernie Els.
Vijay Singh fell one place to sixth this week, followed by Spain's Sergio Garcia, who also dropped one spot to No. 7.
David Toms held his eighth position from last week and Darren Clarke and Colin Montgomerie, who both made early exits from last week's World Match Play Championship, round out the top-10.
Bernhard Langer and Jim Furyk stayed in 11th and 12th, respectively, while Scott Verplank and Retief Goosen switched places with the American Ryder Cupper taking 13th and the reigning U.S. Open champion in 14th.
Padraig Harrington, who lost to Ian Woosnam in the finals of the World Match Play Championship, came in 15th followed by Scott Hoch.
Canada's Mike Weir jumped one spot to No. 17 while Thomas Bjorn dipped one to 18. Mark Calcavecchia climbed one spot to 19 and Tom Lehman used a tie for second in Las Vegas to return to the top-20.
Bob Estes won for the second time in 2001 and jumped 14 places to 28th.
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