Omega Dubai Desert Classic: After shooting an opening-round 77, withdrew from the Omega Dubai Desert Classic citing back spasms. "Tiger Woods went into a spasm in his lower back fairly late last night, got treatment done early this morning for three and a half hours, but can't get it out," his manager Mark Steinberg said. "He says it's not the nerve, but back spasm, and he can't get the spasms to calm down. He can move around, but he can't make a full rotation in his swing."
World Golf Championships-American Express Championship: With victory at the World Golf Championships-American Express Championship, became the first player in TOUR history to win five times in five consecutive seasons. Captured his record fifth consecutive Byron Nelson Award and the PGA of America's Vardon Trophy, based on each player's adjusted scoring average. Finished the season with an adjusted scoring average of 68.41, the second-lowest in TOUR history.
Earned his 80th PGA TOUR victory and first since 2013, winning the TOUR Championship for the third time in his career to move within two of Sam Snead's TOUR-best 82 victories. Finished the season No. 2 in the FedExCup, with runner-up finishes at the Valspar Championship and PGA Championship among his seven top-10s. Led the TOUR in Strokes Gained: Approach the Green (0.938) for the sixth consecutive season in which he played the minimum number of rounds. After originally being selected as a Captain's Assistant for the United States Ryder Cup team, was later selected as a captain's pick and played in the event for the eighth time.
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. The company decided in early fall 2009 to discontinue the drink due to weak sales.
Early in Woods' career, a small number of golf industry analysts expressed concern about his impact on the competitiveness of the game and the public appeal of professional golf. Sportswriter Bill Lyon of Knight Ridder asked in a column, "Isn't Tiger Woods actually bad for golf?" (though Lyon ultimately concluded that he was not). At first, some pundits feared that Woods would drive the spirit of competition out of the game of golf by making existing courses obsolete and relegating opponents to simply competing for second place each week.