Woods had a poor showing at the 2013 U.S. Open as a result of an elbow injury that he sustained at The Players Championship. In finishing at 13-over-par, he recorded his worst score as a professional and finished 12 strokes behind winner Justin Rose. After a prolonged break because of the injury, during which he missed the Greenbrier Classic and his own AT&T National, he returned at the Open Championship at Muirfield. Despite being in contention all week and beginning the final round only two strokes behind Lee Westwood, he struggled with the speed of the greens and could only manage a 3-over-par 74 that left him tied for 6th place, five strokes behind eventual winner Phil Mickelson. Two weeks later, Woods returned to form at the WGC-Bridgestone Invitational, recording his 5th win of the season and 8th win at the event in its 15-year history. His second round 61 matched his record score on the PGA Tour and could easily have been a 59 were it not for some short missed birdie putts on the closing holes. This gave him a seven-stroke lead that he held onto for the rest of the tournament. Woods would never contend at the PGA Championship at Oak Hill Country Club and would come short of winning a major for the 5th full season, only contending in two of the four majors in 2013.
Ryder Cup: Made his sixth Ryder Cup appearance, but first as a Captain's Pick, where he was victorious in three of the four matches in which he was involved. With 16 World Golf Championships titles and 28 top-10 finishes in 32 starts, returned to Sheshan International GC in Shanghai to try and add the HSBC Champions title, the only World Golf Championships title he has yet to capture, to his resume. Twice a runner-up in three previous starts, made five birdies on his inward nine in the final round to shoot a 4-under 68, good for T6 honors.
Genesis Open: As tournament host, finished 6-under and T15 in the Genesis Open, the only event on TOUR at which he has made double-digit starts and not earned a victory. Now has seven top-15s in 13 starts in this event. Made a 43-foot, 10-inch eagle putt at No. 1 in the second round, marking his longest putt made on TOUR since 2014 WGC-Mexico Championship. Played his first four holes of the third round 5-under (B-E-B-B) en route to a 6-under 65.
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."