Bubba Watson moved all the way from 16th to a career-high fourth in the world rankings thanks to his play-off victory over Louis Oosthuizen in The Masters.
Irish golfer Rory McIlroy maintained his position in second despite a disappointing performance in the tournament.
Padraig Harrington moved up to 80th after finishing tied for eighth. Graeme McDowell is in 15th place.
Latest leading positions in the world golf rankings:
1 Luke Donald 9.61pts,
2 Rory McIlroy 9.53,
3 Lee Westwood 8.24
4 Bubba Watson 6.53
5 Hunter Mahan 5.89
6 Steve Stricker 5.64
7 Martin Kaymer 5.58
8 Tiger Woods 5.55
9 Phil Mickelson 5.31
10 Justin Rose 5.28
11 Adam Scott 5.11,
12 Charl Schwartzel 5.06,
13 Webb Simpson 5.02,
14 Matt Kuchar 4.92,
15 Graeme McDowell 4.88,
16 Jason Day 4.88,
17 Dustin Johnson 4.83,
18 Bill Haas 4.52,
19 Louis Oosthuizen 4.49,
20 Keegan Bradley 4.34
Other leading Europeans:
21 Sergio Garcia, 24 Peter Hanson, 25 Ian Poulter, 31 Thomas Bjorn, 33 Martin Laird, 35 Alvaro Quiros, 36 Robert Karlsson, 37 Simon Dyson, 40 Anders Hansen, 41 Fredrik Jacobson, 42 Paul Casey, 43 Francesco Molinari, 44 Paul Lawrie, 51 Gonzalo Fernandez-Castano, 57 Miguel Angel Jimenez, 58 Robert Rock, 63 Darren Clarke, 64 Matteo Manassero, 66 Nicolas Colsaerts, 67 Rafael Cabrera Bello, 68 Carl Pettersson, 74 Michael Hoey, 79 Joost Luiten, 80 Padraig Harrington, 82 Alexander Noren, 84 Pablo Larrazabal, 91 Edoardo Molinari, 94 David Lynn, 95 Jamie Donaldson, 97 Brian Davis, 100 Thorbjorn Olesen