London - Jason Day has edged back ahead of Rory McIlroy to take second place in the world rankings thanks to a tie for 11th place in the Pebble Beach National Pro-Am on Sunday.
McIlroy moved up to second ahead of the Australian at the start of the month, but after kicking off his season with two tournaments in the Gulf, the Ulsterman was inactive last week.
Still atop the rankings is young American Jordan Spieth, who is almost two points clear of Day and he looks likely to stay there until the first of the year's majors, the Masters, at the start of April.
The only other change to the top 10 sees South African Branden Grace, who won in Qatar at the end of January, ease ahead of US veteran Jim Furyk for 10th place.
1. Jordan Spieth (USA) 11.83 pts
2. Jason Day (AUS) 10.01
3. Rory McIlroy (NIR) 9.86
4. Rickie Fowler (USA) 8.11
5. Henrik Stenson (SWE) 7.20
6. Bubba Watson (USA) 7.14
7. Justin Rose (ENG) 6.39
8. Dustin Johnson (USA) 5.65
9. Patrick Reed (USA) 5.07
10. Branden Grace (RSA) 4.79 (+1)
11. Jim Furyk (USA) 4.74 (-1)
12. Hideki Matsuyama (JPN) 4.56
13. Danny Willett (ENG) 4.47
14. Brandt Snedeker (USA) 4.25
15. Zach Johnson (USA) 4.14
16. Brooks Koepka (USA) 4.07 (+3)
17. Kevin Kisner (USA) 4.004
18. Sergio Garcia (ESP) 4.001 (-2)
19. Adam Scott (AUS) 3.95 (-1)
20. Phil Mickelson (USA) 3.70 (+9)