Beem jumped from 73rd last week to No. 26 as he held on to defeat Tiger Woods at Hazeltine National Golf Club. Beem, who got into the PGA Championship field with a win two weeks ago at The International, has moved up 258 positions in 2002.
Woods, who birdied his final four holes to finish one shot behind Beem, remained comfortably in first place. Woods is on to Sahalee Country Club this week to look for a fourth consecutive WGC - NEC Invitational title.
Phil Mickelson's misery at major championships continued with a tie for 34th at the PGA Championship. The left-hander held on to second place, followed by British Open champion Ernie Els, Retief Goosen and Sergio Garcia.
David Toms missed the cut in his title defense at Hazeltine but remained in sixth place in the rankings. Irelands's Padraig Harrington moved up one to No. 7 while Davis Love III fell a notch to eighth.
Vijay Singh kept his ninth spot from last week and Jim Furyk rounded out the top 10.
David Duval's difficult 2002 campaign continued at the PGA Championship with a tie for 34th. He fell out of the top 10 at 11th and was followed by Nick Price, who came in 12th again this week.
Michael Campbell rose one place to 13, while Bob Estes, who missed the cut at Hazeltine, dipped one to 14th. Chris DiMarco jumped one rung to No. 15.
Rocco Mediate finished alone in sixth at the PGA Championship and flew up six places to 16. Darren Clarke and Colin Montgomerie, Ryder Cup teammates next month, missed the cut in the season's final major but Clarke held on to 17th while Montgomerie fell three to 18th.
Angel Cabrera dropped one to 19th while Justin Leonard, who shared fourth at the PGA, moved up five to round out the top 20.
Fred Funk delighted the Hazeltine galleries all week en route to a tie for fourth. The high finish at the PGA Championship advanced Funk up 15 places to No. 50.