Timeline of golf (2000–present) number one at the end of that year. Tiger Woods completes what becomes known as the "Tiger Slam", holding off David Duval and Phil Mickelson to win the Masters Championship in April to become the first golfer in history to hold, concurrently, all four professional major championships. For good measure, Woods had won the game's fifth most important event, the Tournament Players' Championship as well, in March. By the end of the year, however, Woods would have relinquished three of his titles, on each occasion to players winning their first major title. At the U.S. Open, South African Retief Goosen
Professional golf career of Tiger Woods his worst four-round result as a professional golfer. Woods began working with Canadian golf coach Sean Foley in August 2010; the two had been discussing a possible partnership for several previous weeks. In the 2010 PGA Championship, played at Whistling Straits in Wisconsin, Woods made the 36-hole cut but failed to mount a challenge, ending in a tie for 28th place. Woods's inconsistent play in the 2010 FedEx Cup playoffs failed to qualify him into the top 30 players for The Tour Championship, for the first time since he turned professional in 1996. He had won the FedEx Cup in