Dustin Johnson won the Genesis Open on Sunday, and with that victory he became the 20th golfer to own the title of world No. 1, and just the sixth American.
Johnson took over the ranking from Australian Jason Day, who had held the No. 1 spot for nearly a full year -- since March 27, 2016.
Below is a list of every golfer who has been ranked No. 1 in the Official World Golf Ranking since its inception in 1986, along with the number of weeks each has held the top spot.
Tiger Woods, 683
Greg Norman, 331
Nick Faldo, 97
Rory McIlroy, 95
Seve Ballesteros, 61
Luke Donald, 56
Ian Woosnam, 50
Jason Day, 46
Nick Price, 44
Vijay Singh, 32
Jordan Spieth, 26
Lee Westwood, 22
Fred Couples, 16
David Duval, 15
Adam Scott, 11
Ernie Els, 9
Martin Kaymer, 8
Bernhard Langer, 3
Dustin Johnson, 1
Tom Lehman, 1