The 28-year-old Blixt, winning on the PGA Tour for the first time, was No. 75 in the rankings released Monday, up from 115 the previous week.
Blixt carded a 16-under-par 268, winning by a stroke Sunday over Tim Petrovic and Jason Kokrak.
The top tier of the rankings is unchanged, with Northern Ireland's Rory McIlroy solidly on top, followed by Tiger Woods of the United States (2) and, Luke Donald, Lee Westwood and Justin Rose, all of England (3-4-5).
Rounding out the Top 20, in order, are Steve Stricker (U.S.), Louis Oosthuizen (South Africa), Matt Kuchar, Dustin Johnson, Keegan Bradley, Zach Johnson and Phil Mickelson (all U.S.), Graeme McDowell (Northern Ireland), Sergio Garcia (Spain) and Hunter Mahan (U.S.).