File photo of Jordan Spieth of USA during the 2017 PGA Championship at Quail Hollow Club. (PHOTO: Reuters/Rob Schumacher-USA TODAY Sports) |
The American Spieth, who won his third major title at the British Open last month, overtakes Japan's Hideki Matsuyama.
Johnson strengthened his grip on the world number one ranking thanks to his first win since injuring himself falling down stairs before April's Masters.
Rising Spanish star Jon Rahm, who only turned professional last year, continued his sensational rise by breaking into the top five for the first time after finishing tied for third with Venezuela's Jhonattan Vegas in New York.
World top 20:
1. Dustin Johnson (USA) 12.42 average pts
2. Jordan Spieth (USA) 9.65 (+1)
3. Hideki Matsuyama (JPN) 9.24 (-1)
4. Rory McIlroy (NIR) 7.10
5. Jon Rahm (ESP) 7.00 (+3)
6. Justin Thomas (USA) 6.74 (+1)
7. Sergio Garcia (ESP) 6.71 (-2)
8. Henrik Stenson (SWE) 6.66 (-2)
9. Jason Day (AUS) 6.42
10. Rickie Fowler (USA) 6.02
11. Alex Noren (SWE) 5.87
12. Brooks Koepka (USA) 5.85
13. Matt Kuchar (USA) 5.44
14. Paul Casey (ENG) 4.91 (+3)
15. Justin Rose (ENG) 4.72
16. Tommy Fleetwood (ENG) 4.66
17. Francesco Molinari (ITA) 4.59 (-3)
18. Adam Scott (AUS) 4.44 (+1)
19. Rafael Cabrera Bello (ESP) 4.38 (-1)
20. Louis Oosthuizen (RSA) 4.35
What the stars mean:
★ Poor ★ ★ Promising ★★★ Good ★★★★ Very good ★★★★★ Exceptional