Scott won the Masters in April, defeating Angel Cabrera in a playoff. On Sunday, he held off a strong field with a 5-under-par 66 in winning the Barclays by a stroke.
Among those tied for second was world No. 1 Tiger Woods and fifth-ranked Justin Rose. Phil Mickelson, who Scott moves past in the rankings this week, was one of three players tied for sixth, two strokes off the winning score.
Woods is well ahead in the rankings and has been No. 1 for a total of 646 weeks. Scott, now with 10 PGA Tour wins, is second and Mickelson, who opened the year 17th in the rankings, is third.
Tommy Fleetwood had a birdie on the first playoff hole in edging Stephen Gallacher and Ricardo Gonzalez to win the European Tour's Johnnie Walker Championships at Gleneagles in Scotland. It was his first title.
Fleetwood closed regulation eagle-par-birdie for his share of the 72-hole lead while Gallacher, whose final round included a triple-bogey 7 on the 11th hole, went birdie-par-eagle in his final three holes. Gonzalez led after each of the first three rounds but opened Sunday with a double bogey. His final three holes of regulation went birdie-par-birdie.
Each jumps in the rankings, with Fleetwood moving up 115 spots to No. 162; Gonzalez rising 108 places to 244th; and Gallacher going from 74th to 64th.
The men's world golf rankings Top 10, listing player's name, home country and rankings points average:
1. Tiger Woods, United States, 14.38
2. Adam Scott, Australia, 9.44
3. Phil Mickelson, United States, 8.62
4. Rory McIlroy, Northern Ireland, 8.18
5. Justin Rose, England, 7.88
6. Matt Kuchar, United States, 6.58
7. Brandt Snedeker, United States, 6.32
8. Jason Dufner, United States, 5.99
9. Graeme McDowell, Northern Ireland, 5.82
10. Henrik Stenson, Sweden, 5.77