Bill Haas knocked off Phil Mickelson and best spot of No. 12 in this week's world rankings.

The victory for Haas was his fourth time on the PGA Tour.

Luke Donald again held steady in the top spot. Rory McIlroy inched up one to No. 2 and that bumped Lee Westwood to third.

The next five positions were unchanged with No. 4 Martin Kaymer again followed by Steve Stricker, Webb Simpson, Jason Day and Adam Scott.

Despite the playoff loss, Mickelson moved up two to ninth. Dustin Johnson remained No. 10, while Masters champion Charl Schwartzel dipped a pair to 11th.

After Haas, Graeme McDowell, Matt Kuchar and Nick Watney all slipped one. Sergio Garcia rose one to 16th, as K.J. Choi and Brandt Snedeker both fell two to 17th and 18th respectively.

Bradley jumped seven positions to No. 19 and Tiger Woods dropped a pair to No. 20 this week. Bubba Watson and Justin Rose fell out of the top 20 as they dipped to 21st and 23rd.

Jbe Kruger soared 50 spots to No. 109 after his win at the European Tour's Avantha Masters.