March 25, 2013 - Tiger Woods
Aug. 12, 2012 - Rory McIlroy (32 weeks)
May 27, 2012 - Luke Donald (11 weeks)
May 6, 2012 - Rory McIlroy (3 weeks)
April 29, 2012 - Luke Donald (1 week)
April 15, 2012 - Rory McIlroy (2 weeks)
March 18, 2012 - Luke Donald (4 weeks)
March 4, 2012 - Rory McIlroy (2 weeks)
May 29, 2011 - Luke Donald (40 weeks)
April 24, 2011 - Lee Westwood (5 weeks)
Feb. 27, 2011 - Martin Kaymer (8 weeks)
Oct. 31, 2010 - Lee Westwood (17 weeks)
June 12, 2005 - Tiger Woods (281 weeks)
May 22, 2005 - Vijay Singh (3 weeks)
April 10, 2005 - Tiger Woods (6 weeks)
March 20, 2005 - Vijay Singh (3 weeks)
March 6, 2005 - Tiger Woods (2 weeks)
Sept. 6, 2004 - Vijay Singh (26 weeks)
Aug. 15, 1999 - Tiger Woods (264 weeks)
Aug. 8, 1999 - David Duval (1 week)
July 4, 1999 - Tiger Woods (5 weeks)
March 28, 1999 - David Duval (14 weeks)
June 14, 1998 - Tiger Woods (41 weeks)
May 17, 1998 - Ernie Els (4 weeks)
May 10, 1998 - Tiger Woods (1 week)
April 12, 1998 - Ernie Els (4 weeks)
Jan. 11, 1998 - Tiger Woods (13 weeks)
Sept. 7, 1997 - Greg Norman (18 weeks)
July 6, 1997 - Tiger Woods (9 weeks)
June 29, 1997 - Greg Norman (1 week)
June 22, 1997 - Ernie Els (1 week)
June 15, 1997 - Tiger Woods (1 week)
April 27, 1997 - Greg Norman (7 weeks)
April 20, 1997 - Tom Lehman (1 week)
June 18, 1995 - Greg Norman (96 weeks)
Aug. 14, 1994 - Nick Price (44 weeks)
Feb. 6, 1994 - Greg Norman (27 weeks)
July 19, 1992 - Nick Faldo (81 weeks)
April 5, 1992 - Fred Couples (15 weeks)
March 29, 1992 - Nick Faldo (1 week)
March 22, 1992 - Fred Couples (1 week)
April 7, 1991 - Ian Woosnam (50 weeks)
Feb. 3, 1991 - Nick Faldo (9 weeks)
Oct. 14, 1990 - Greg Norman (16 weeks)
Sept. 2, 1990 - Nick Faldo (6 weeks)
Aug. 20, 1989 - Greg Norman (54 weeks)
April 2, 1989 - Seve Ballesteros (20 weeks)
March 26, 1989 - Greg Norman (1 week)
Nov. 13, 1988 - Seve Ballesteros (19 weeks)
Nov. 6, 1988 - Greg Norman (1 week)
Oct. 30, 1988 - Seve Ballesteros (1 week)
Nov. 29, 1987 - Greg Norman (48 weeks)
Nov. 22, 1987 - Seve Ballesteros (1 week)
Sept. 14, 1986 - Greg Norman (62 weeks)
April 27, 1986 - Seve Ballesteros (20 weeks)
April 6, 1986 - Bernhard Langer (3 weeks)
