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The OWGR No. 1 ranking has now seen 20 golfers hold the position<p>With his win at the Genesis Open on Sunday, Dustin Johnson rose to No. 1 in the Official World Golf Rankings for the first time in his career. Johnson is the 20th golfer to be ranked No. 1 since the OWGR started back in 1986. He …

Read more at CBS Sports: http://www.cbssports.com/golf/news/dustin-johnson-takes-over-world-no-1-ranking-with-win-at-genesis-open/