PGA Championship: Won 12th major at the PGA Championship at Medinah CC, moving into solo second behind Jack Nicklaus (18) on the career majors list. First player to win two PGAs at the same course (1999 and 2006). Recorded four rounds in the 60s (69-68-65-68) for just the second time in a major (2000 Open Championship). Tied the tournament record which he set with Bob May in 2000 (18-under 270). Became the 29th player in major championship history to collect two major wins in the same year, this being his fourth time.
THE PLAYERS Championship: In his next start, claimed on Mother's Day his second PLAYERS Championship victory after opening with a pair of 5-under 67s. He had previously not had back-to-back rounds in the 60s at THE PLAYERS since the second and third rounds in 2004 (T16). The only other time he accomplished the feat was in 2001 (second, third and fourth rounds), when he won. With his win, joined Jack Nicklaus, Steve Elkington, Hal Sutton, Fred Couples and Davis Love III as multiple winners of the event. The victory at TPC Sawgrass became his fourth of the campaign, the earliest he has achieved the feat in a season. The win was also his 16th in Florida, the most of any state. Converted the 54-hole lead for the 53rd time (in 57 attempts).
Wells Fargo Championship: With his best score of the week a 3-under 68 in the third round, finished T55 in his first start at the Wells Fargo Championship since 2012. Failed to record a birdie in the final round (3-over 74). It was the 11th time in his career as a professional where he failed to post a birdie in a round, and the first time since the final round of the 2014 World Golf Championships-Mexico Championship (at Doral).
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.
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.