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.
BMW Championship: Matched the low final round of his career with an 8-under 63 to win the BMW Championship by two strokes for 60th career TOUR victory. Took the lead for good with a 12-foot birdie on the 13th hole and kept his distance from third-round co-leaders Aaron Baddeley and Steve Stricker. Finished at 22-under 262, breaking by five shots the record he set four years prior at Cog Hill.
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 collaborated closely with TAG Heuer to develop the world's first professional golf watch, which was released in April 2005. The lightweight, titanium-construction watch, designed to be worn while playing the game, incorporates numerous innovative design features to accommodate golf play. It is capable of absorbing up to 5,000 Gs of shock, far in excess of the forces generated by a normal golf swing. In 2006, the TAG Heuer Professional Golf Watch won the prestigious iF product design award in the Leisure/Lifestyle category.