Sauers began the week 895th in the world and was the seventh alternate in the field. He posted a one-shot victory over Steve Lowery to come in 155th in the world this week.
Tiger Woods held on to first place, followed by Phil Mickelson, who pulled out of this week's Canadian Open due to a back injury. Mickelson felt a twinge while carrying luggage but is expected back to action in two weeks at the WGC- American Express Championship.
Ernie Els and Retief Goosen are third and fourth in the world, respectively and both will tee it up in the European Masters. The South Africans are battling for top honors on the 2002 Order of Merit list with Els currently in first and Goosen second.
Sergio Garcia took fifth this week, followed by David Toms, Davis Love III and Padraig Harrington. Vijay Singh remained in ninth while Jim Furyk held on to the 10th position.
David Duval, in the middle of his worst season in recent memory, moved up one to 11th. Nick Price dipped one notch to 12th and New Zealand's Michael Campbell stayed at 13th.
Chris DiMarco and Rocco Mediate each jumped one spot to 14th and 15th, respectively. Bob Estes dropped two places to No. 16 while European Ryder Cuppers Darren Clarke and Colin Montgomerie remained in 17th and 18th.
Justin Leonard and Angel Cabrera switched places from last week with the American going to 19th and the Argentinean rounding out the top 20.