Walker makes another big move in world rankings

Philadelphia, PA ( - Jimmy Walker collected his third PGA Tour title since October and that helped him make another big move in this week's world golf rankings.

Walker, ranked No. 117 at the start of the 2013 season, won this year's Sony and last weekend's Pebble Beach National Pro-Am. Couple those two titles with another at the Open last October and Walker has soared to No. 24 in the new rankings.

Tiger Woods was No. 1 again and followed by Adam Scott, Henrik Stenson, Phil Mickelson and Justin Rose.

Rory McIlroy inched up one to sixth and that pushed Zach Johnson down to seventh. Sergio Garcia and Matt Kuchar also exchanged spots with Garcia up to eighth.

Jason Day remained No. 10 and was followed by Dustin Johnson and Steve Stricker, who flip-flopped places 11 and 12. Jordan Spieth jumped three to No. 13 and that bumped Ian Poulter down a notch to 14.

Graeme McDowell held steady at 15, while Jason Dufner was down two spots to 16th. Brandt Snedeker, Charl Schwartzel, Webb Simpson and Luke Donald rounded out the top 20 again this week.

George Coetzee won the Joburg Open on the European Tour and jumped from 74th to 59th, which qualifies him for next week's WGC - Accenture Match Play Championship.

With the Match Play next week, the top 64 in this week's rankings all qualified. Boo Weekly earned the 64th spot, however Nos. 65-67 -- Richard Sterne, Scott Piercy and Kiradech Aphibarnrat -- are going to play as Woods, Scott and Mickelson have all announced they are skipping the event for various reasons.

If any more players withdraw, Brooks Koepka, Brendon de Jonge and Peter Uihlein are next in line to replace that player.