Hunter Mahan's victory at the WGC- - it moved him into the top-10, and kept Rory McIlroy from becoming the No. 1 player in the world.

Mahan defeated McIlroy, 2 & 1, in the final and rose 13 places to a career- high ninth in the rankings. The victory was his fourth on the PGA Tour and second at a prestigious World Golf Championships event.

McIlroy would have ascended to No. 1 in the rankings by beating Mahan, but the reigning U.S. Open champion remained No. 2 behind Luke Donald.

Lee Westwood, Martin Kaymer, Steve Stricker and Webb Simpson remained in spots three through six, respectively, while Adam Scott is still at No. 8. Dustin Johnson and Jason Day switched places, with Johnson rising to seventh and Day dropping down to 10th.

Phil Mickelson, who did not play this weekend, dipped two places to 11th.

Charl Schwartzel and Bill Haas both dropped down a spot to 12th and 13th, respectively. Matt Kuchar stayed at 14th, while Graeme McDowell fell two places to 15th.

Nick Watney and Sergio Garcia both fell one position to 16th and 17th, while Brandt Snedeker is still 18th. K.J. Choi dipped two slots in 19th, and Keegan Bradley fell one to 20th.

Mark Wilson, who lost to Mahan in a semifinal match this weekend, jumped from 42nd to 24th.

John Huh soared 129 places to No. 137 after his victory at the Mayakoba Golf Classic this weekend. He beat Robert Allenby by parring eight playoff holes.