Bay Hill Invitational presented by Cooper Tires: Earned his third consecutive victory at the Bay Hill Invitational, the first player to win three different TOUR events (the Memorial Tournament from 1999 to 2001) and the World Golf Championships-NEC Invitational (also 1999 to 2001) three consecutive times. Entered the final round with a one-shot lead over Len Mattiace and carded a 3-under 69 to win by four over runner-up Michael Campbell. With his 30th career PGA TOUR victory, he surpassed Nicklaus for most wins before age 30.
Woods' back problems continued to hinder him in 2017. He missed the cut at the Farmers Insurance Open in January and pulled out of a European Tour event in Dubai on February 3. On March 31, Woods announced on his website that he would not be playing in the 2017 Masters Tournament despite being cleared to play by his doctors. Woods said that although he was happy with his rehabilitation, he did not feel "tournament ready." Woods subsequently told friends, “I’m done”. On April 20, Woods announced that he had undergone his fourth back surgery since 2014 to alleviate back and leg pain. Recovery time required up to six months, meaning that Woods would spend the rest of the year without playing any professional golf. Woods returned to competitive golf at the Hero World Challenge in the Bahamas. He shot rounds of 69-68-75-68 and finished tied for 9th place. His world ranking went from 1,199th to 668th, which was the biggest jump in the world rankings in his career.
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.