World Golf Championships-Mexico Championship: Collected his first top-10 of the season with a T10 at the World Golf Championships-Mexico Championship. Marked his 13th career top-10 finish in the event and 34th in World Golf Championships events. Second-round 66 at Club de Golf Chapultepec highlighted his competitive debut in Mexico. Four-putted the par-5 15th green and three-putted the par-4 16th green in the third round, marking the first time in his career he had four-putted and three-putted in back-to-back holes, a stretch of 22,640 holes in stroke-play events before reaching the par-5 15th in the third round.
The foundation operates the Tiger Woods Learning Center, a $50-million, 35,000-square-foot (3,300 m2) facility in Anaheim, California, providing college-access programs for underserved youth. The TWLC opened in 2006 and features seven classrooms, extensive multi-media facilities and an outdoor golf teaching area. The center has since expanded to four additional campuses: two in Washington, D.C.; one in Philadelphia; and one in Stuart, Florida.
World Golf Championships-CA Championship: Logged 56th career TOUR victory and 13th official World Golf Championships title in 24th start at the CA Championship at Doral Golf Resort & Spa. Held the 36- and 54-hole leads before closing out a two-stroke win over Brett Wetterich, marking the 39th time winning (in 42 events) when holding at least a share of the third-round lead.
On December 2, following Us Weekly's previous day reporting of a purported mistress and subsequent release of a voicemail message allegedly left by Woods for the woman, Woods released a further statement. He admitted transgressions and apologized to "all of those who have supported [him] over the years", while reiterating his and his family's right to privacy. Over the next few days, more than a dozen women claimed in various media outlets to have had affairs with Woods. On December 11, he released a third statement admitting to infidelity and he apologized again. He also announced that he would be taking "an indefinite break from professional golf."
Woods was 15 years old and a student at Western High School in Anaheim when he became the youngest U.S. Junior Amateur champion; this was a record that stood until it was broken by Jim Liu in 2010. He was named 1991's Southern California Amateur Player of the Year (for the second consecutive year) and Golf Digest Junior Amateur Player of the Year. In 1992, he defended his title at the U.S. Junior Amateur Championship, becoming the tournament's first two-time winner. He also competed in his first PGA Tour event, the Nissan Los Angeles Open (he missed the 36-hole cut), and was named Golf Digest Amateur Player of the Year, Golf World Player of the Year, and Golfweek National Amateur of the Year.
Ford Championship at Doral: Took over as World No. 1 for the first time since the week of Aug. 30, 2004 by defeating Phil Mickelson by a stroke at the Ford Championship at Doral. Paired with Mickelson in the final round for just the third time in his career, began the day two strokes behind. Caught up to Mickelson at the turn and took a two-stroke lead after an eagle on the par-5 12th hole. Mickelson birdied the next two and both bogeyed the 16th to remain tied with two holes to play. Birdied the 17th hole and when Mickelson's chip on No. 18 lipped out, earned the 42nd victory of his career.
Woods has spent the most consecutive and cumulative weeks atop the world rankings. He is one of five players (along with Gene Sarazen, Ben Hogan, Gary Player, and Jack Nicklaus) to have won all four major championships in his career, known as the Career Grand Slam, and was the youngest to do so. Woods is the only player to have won all four major championships in a row, accomplishing the feat in the 2000–2001 seasons.
Surgery: Pulled out of next two PGA TOUR starts, the Genesis Open and The Honda Classic. Released statement: "My doctors have advised me not to play the next two weeks, to continue my treatment and to let my back calm down. This is not what I was hoping for or expecting. I am extremely disappointed to miss the Genesis Open, a tournament that benefits my foundation, and The Honda Classic, my hometown event. I would like to thank Genesis for their support, and I know we will have an outstanding week." In April, announced on his website he had undergone further back surgery. The operation was performed by Dr. Richard Guyer of the Center for Disc Replacement at the Texas Back Institute.