Padraig Harrington has climbed 11 places to his highest ranking of third in the world after his Open Championship triumph.
But even victories in the next two majors may not be enough for him to catch number one Tiger Woods.
Woods, out of action for the rest of the year following knee surgery, still has more than double the points average of second-placed Phil Mickelson and over three times that of Harrington.
It has already been calculated that if Open champion Harrington won next month's US PGA and next April's Masters - providing Woods does not play until Augusta - he would still need some high finishes in other events to overtake the American.
Open runner-up Ian Poulter improves from 42nd to 23rd, while Greg Norman, who finished joint third, makes the biggest leap in rankings history - from 646th to 166th.
Latest leading positions:
1 Tiger Woods 19.50, 2 Phil Mickelson 9.68, 3 Padraig Harrington 6.37, 4 Adam Scott 5.54, 5 Ernie Els 5.53, 6 Geoff Ogilvy 5.40, 7 Sergio Garcia 5.36, 8 Stewart Cink 5.33, 9 Steve Stricker 5.22, 10 Jim Furyk 5.04
11 Henrik Stenson 4.94, 12 Justin Rose 4.87, 13 KJ Choi 4.85, 14 Anthony Kim 4.84, 15 Vijay Singh 4.76, 16 Kenny Perry 4.41, 17 Trevor Immelman 4.40, 18 Lee Westwood 4.28, 19 Rory Sabbatini 4.26, 20 Miguel Angel Jimenez 3.97
Other leading Europeans:
21 Luke Donald, 22 Robert Karlsson, 23 Ian Poulter, 30 Graeme McDowell, 33 Martin Kaymer, 41 Paul Casey, 43 Soren Hansen, 47 Fredrik Jacobson, 48 Oliver Wilson, 50 Niclas Fasth, 53 Anders Hansen, 55 Ross Fisher, 65 Nick Dougherty, 71 Carl Pettersson, 82 Colin Montgomerie, 83 Soren Kjeldsen, 86 Peter Hanson, 87 Daniel Chopra, 91 Steve Webster, 97 Alastair Forsyth, 99 Peter Hedblom
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