Northern Irishman, a 4-time major champion, bumps American Brooks Koepka from the top spot, even though neither competed last week
Returned: To No. 1 in the Official World Golf Ranking, Northern Ireland’s Rory McIlroy, who ended the 38-week reign of American Brooks Koepka. McIlroy, 30, assumes the top spot for the eighth time, and the first since mid-September 2015. Neither he nor Koepka competed last week. The OWGR operates on a rolling system of points accumulated during the past two years. McIlroy, a four-time major champion who hasn't won one of golf's biggest prizes in nearly six years, is entered in this week’s Genesis Invitational at Riviera Country Club in Pacific Palisades, Calif. The other big move among the world’s top 10 involved Tiger Woods, who dropped from No. 6 to No. 8, swapping places with Patrick Cantlay, who improved to a career-high ranking after a T-11 at the Pebble Beach Pro-Am. Cantlay had posted two finishes of fourth or better in three previous starts worldwide. Phil Mickelson, who finished third at Pebble Beach, improved from No. 77 to No. 55, putting him on track to earn a spot via the world ranking in the U.S. Open, the only major championship for which he is not eligible. Pebble Beach winner Nick Taylor surged 128 spots, to No. 101.