American Brooks Koepka climbed to number two in the world rankings after winning his second major of the year at the PGA Championship while runner-up Tiger Woods climbed 24 spots to 26th.
US Open champion Koepka, 28, held off stiff challenges from Woods and Australian Adam Scott to clinch the third major of his career at Bellerive Country Club on Sunday and put pressure on rankings leader Dustin Johnson.
Former world number one Woods was in the running to claim a record-equalling fifth PGA Championship and his first major trophy since the 2008 US Open but fell short by two strokes.
The 42-year-old American underwent spinal fusion last year but showed glimpses of the sublime form that has earned him 14 majors.
Shane Lowry, meanwhile, jumped seventeen placed to 139 on the Fedex Cup standings following his performance in the PGA Championship.
Lowry finished tied for 12th on eight under par at Bellerive and could have placed even better but for two bogeys on the final three holes.
After a difficult year, the Offaly man has enjoyed a welcome return to form in the past month, finishing in the top 15 three weeks running.
However, he'll need to maintain that run heading into the final event of the season, the Wyndham Championship in North Carolina. He has to jump another fourteen places in the standings and break into the top 125 to secure his PGA Tour card for next season.
