All the golfers ever ranked No. 1 in the OWGR

The Official World Golf Ranking was introduced in 1986. Since its introduction, 21 different players have been ranked No. 1 in the world.

(USA TODAY Sports)

Martin Kaymer

8 weeks

Kaymer rose to prominence in 2010 when he won the PGA Championship, the first of his two majors. He became the No. 1-ranked golfer in the world in 2011, overtaking Lee Westwood, and he held the top spot for eight weeks. In 2014, he won his second major at the U.S. Open.