The Official World Golf Ranking was introduced in 1986. Since its introduction, 21 different players have been ranked No. 1 in the world.
Justin Thomas
4 weeks
Thomas won his first major at the 2017 PGA Championship and less than a year later, he ascended to the top spot in the OWGR after the 2018 Players Championship. He held the No. 1 ranking for four consecutive weeks before giving way to Dustin Johnson.