Adam Scott's win in the Colonial tournament in Texas on Sunday has bolstered his hold on the world top ranking. The Australian had been in danger of losing the position to Sweden's Henrik Stenson, who was competing in the European PGA Championship at Wentworth. But after Stenson finished tied for seventh, Scott was left needing to place in the top 13 in Fort Worth to extend his stay at the top. That he did in some style, defeating Jason Dufner in a playoff for his first title of the year. Scott now has 8.94 points with Stenson in second on 7.79 points and Tiger Woods third on 7.65 points. Former world number one Rory McIlroy improved to sixth place on the back of his win at Wentworth, his first title of the tear. World Top 20 rankings 1. Adam Scott (AUS)              8.94 2. Henrik Stenson (SWE)          7.79 3. Tiger Woods (USA)             7.65 4. Matt Kuchar (USA)             7.03 5. Bubba Watson (USA)            6.97 6. Rory McIlroy (NIR)            6.92 7. Jason Day (AUS)               6.50 8. Sergio Garcia (ESP)           6.17 9. Justin Rose (ENG)             6.06 10. Jordan Spieth (USA)          6.00 11. Phil Mickelson (USA)         5.65 12. Jim Furyk (USA)              5.43 13. Zach Johnson (USA)           5.25 14. Dustin Johnson (USA)         4.84 15. Jason Dufner (USA)           4.50 16. Luke Donald (ENG)            4.38 17. Jimmy Walker (USA)           4.28 18. Graeme McDowell (NIR)        4.25 19. Steve Stricker (USA)         4.17 20 Charl Schwartzel (RSA)        4.11 Source: AFP