Rose passed an idle McIlroy at No. 10 in the latest rankings, dropping the Ulsterman to No. 11. McIlroy was No. 1 in the world as recently as March 2013 and hasn't been outside the top 10 since he was 12th in the world on January 16, 2011.
While McIlroy's form has been solid of late - he hasn't played since a T-8 finish at the Masters, his third top-10 result in his last four starts - the OWGR calculators have not been kind. He was sixth on March 2 following his playoff loss at the Honda Classic, but soon dropped to ninth and, despite a top-10 at Augusta National, dropped a spot to 10th after the season's first major.
Sunday's winner in New Orleans, Seung-yul Noh, jumped from No. 176 to 88th after notching his first career PGA Tour win. The two men Noh beat out for the win also made sizeable jumps thanks to their runner-up finishes, as Robert Streb moved from No. 348 to No. 223 and Andrew Svoboda went from No. 266 to No. 172.
While the top 50 in the world were largely static this week, two players did move up with timely high finishes. Francesco Molinari moved from No. 52 to 46th thanks to a fourth-place showing at the Volvo China Open, while Thongchai Jaidee's fifth-place finish at the Indonesian Masters was enough to move from No. 54 to No. 49. As a byproduct of cracking the top 50 in this week's rankings, both players now will receive invites to next week's Players Championship.
Outside of the Rose/McIlroy swap, the top 10 remained the same: Tiger Woods, Adam Scott, Henrik Stenson, Bubba Watson, Matt Kuchar, Jason Day, Jordan Spieth, Sergio Garcia and Phil Mickelson currently occupy the top nine slots. While Woods' perch at the top is not in jeopardy this week at the Wells Fargo Championship, a number of players are expected to have a chance to unseat him next week at TPC Sawgrass.