Buick Open: Shot a final-round 69 and coasted to a three-shot victory with a 20-under 268 at the Buick Open for the 69th PGA TOUR title of his career. Improved to 36-1 when he had the outright lead after 54 holes. The win was his fourth of the season in just 11 starts since returning from knee surgery and the 69th of his career. He also claimed 500 FedExCup points and moved to the top of the standings. Reached victory No. 69 at the age of 33 years and seven months–almost seven years faster than Jack Nicklaus and eight years sooner than Sam Snead. Shot a 71 in the first round and came back with the best five-hole start of his career–beginning 6-under in the second round–en route to a 9-under 63 for his best score in relation to par in four years. Shot a 65 in the third round and held a one-shot lead going into Sunday.
Woods returned to competition in April at the 2010 Masters, where he finished tied for fourth place. He followed the Masters with poor showings at the Quail Hollow Championship and the Players Championship, where he withdrew in the fourth round, citing injury. Shortly afterward, Hank Haney, Woods' coach since 2003, resigned the position. In August, Woods hired Sean Foley as Haney's replacement. The rest of the season went badly for Woods, who failed to win a single event for the first time since turning professional, while nevertheless finishing the season ranked No. 2 in the world.
Woods had back surgery on September 16, 2015. In late March 2016, he announced that he would miss the Masters while he recovered from the surgery; he had also missed the 2014 Masters due to a back problem. "I'm absolutely making progress, and I'm really happy with how far I've come," he explained in a statement. "But I still have no timetable to return to competitive golf." However, he did attend the Masters Champions Dinner on April 5, 2016. For the first time in his career, he missed all four majors in one year due to problems with his back. In October 2016, he told Charlie Rose on PBS that he still wanted to break Jack Nicklaus's record of 18 major titles. Woods underwent back surgery in December 2016 and spent the next 15 months off the Tour. He made his return to competitive golf in the Hero World Challenge.
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.