PGA Championship: Despite not hitting a fairway until the 10th hole Sunday, made eight birdies and two bogeys to post a 6-under 64, tying the day's low round. Finished solo-second at 14-under 266, two strokes behind Brooks Koepka. The runner-up finished marked his 31st on the PGA TOUR and first time taking solo-second since the 2009 TOUR Championship. Was looking to tie Jack Nicklaus and Walter Hagen for most PGA Championship victories. A win would have marked his first major championship title since the 2008 U.S. Open, a span of 3,709 days.

In October 2007, Gatorade announced that Woods would have his own brand of sports drink starting in March 2008. "Gatorade Tiger" was his first U.S. deal with a beverage company and his first licensing agreement. Although no figures were officially disclosed, Golfweek magazine reported that it was for five years and could pay him as much as $100 million.[144] The company decided in early fall 2009 to discontinue the drink due to weak sales.[145]
Masters Tournament: Earned third Masters title, joining Nicklaus (1965-66) and Nick Faldo (1989-90) as the only consecutive winners at Augusta National. Only Nicklaus (six wins) and Arnold Palmer (four wins) have more Masters titles. Jimmy Demaret, Faldo, Gary Players and Sam Snead also won three Masters Tournaments. Was tied with Retief Goosen at 11-under entering the final round, birdied two of the first three holes en route to a three-stroke victory over Goosen. Win was his 31st on TOUR.
Arnold Palmer Invitational presented by MasterCard: Sank a 24-foot birdie putt on the final hole to beat Bart Bryant and win the Arnold Palmer Invitational presented by MasterCard by one stroke, extending his PGA TOUR winning streak to five tournament starts. The win was the 64th of his career, tying Ben Hogan at No. 3 on the PGA TOUR career victory list.

World Golf Championships-CA Championship: Logged 56th career TOUR victory and 13th official World Golf Championships title in 24th start at the CA Championship at Doral Golf Resort & Spa. Held the 36- and 54-hole leads before closing out a two-stroke win over Brett Wetterich, marking the 39th time winning (in 42 events) when holding at least a share of the third-round lead.

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.


In August 2016, Woods announced that he would be seeking a new golf equipment partner[149] after the news of Nike's exit from the equipment industry.[150] It was announced on January 25, 2017, that he would be signing a new club deal with TaylorMade.[151] He added the 2016 M2 driver along with the 2017 M1 fairway woods, with irons to be custom made at a later date. He also added his Scotty Cameron Newport 2 GSS, a club he used to win 13 of his 15 majors.[152] Also, in late 2016, he would add Monster Energy as his primary bag sponsor, replacing MusclePharm.[153]
Masters Tournament: On Tuesday, April 15, two days after finishing second at the Masters, underwent arthroscopic surgery on his left knee in Park City, Utah, to repair cartilage damage. Expected to miss 4-6 weeks. It was the same knee operated on in 1994 for a benign tumor, followed by arthroscopic surgery in 2002. Began experiencing pain in mid-2007 when he injured his anterior cruciate ligament while running at home in Orlando following The Open Championship but opted not to have surgery at that time.

From mid-1993 (while he was still an amateur) until 2004, Woods worked almost exclusively with leading swing coach Butch Harmon. From mid-1997, Harmon and Woods fashioned a major redevelopment of Woods' full swing, achieving greater consistency, better distance control, and better kinesiology. The changes began to pay off in 1999.[176] Woods and Harmon eventually parted ways. From March 2004 to 2010, Woods was coached by Hank Haney, who worked on flattening his swing plane. Woods continued to win tournaments with Haney, but his driving accuracy dropped significantly. Haney resigned under questionable circumstances in May 2010[177] and was replaced by Sean Foley.[178]
Farmers Insurance Open: In his first official PGA TOUR start in over a year, carded rounds of 72-71-70-72 to finish T23 at the Farmers Insurance Open, his 17th start in the event. Marked his first time playing the weekend at Torrey Pines since 2014, with a WD and missed cut in 2015 and 2017, respectively. Stats for the week included: 17 of 56 fairways, 42 of 72 greens in regulation and 110 putts.
Woods collaborated closely with TAG Heuer to develop the world's first professional golf watch, which was released in April 2005.[139] 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.[139] In 2006, the TAG Heuer Professional Golf Watch won the prestigious iF product design award in the Leisure/Lifestyle category.[140]
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