Difficult season off the course, as he suffered the loss of father Earl after a long battle with cancer on May 3. Inside the ropes, World No. 1 dominated with eight victories, including two major titles (The Open Championship and PGA Championship). Entered the 2007 season with a TOUR streak of six consecutive victories. Led the TOUR in scoring average (68.11) but not eligible for seventh Vardon Trophy as he did not play 60 competitive rounds. Won Byron Nelson Award for low scoring average.
Buick Open: Second-round, 9-under-par 63 led to a win at the Buick Open, his 33rd career title and 20th different tournament triumph. Led after both 36 and 54 holes. Has won 25 of 27 events when he was the 54-hole leader/co-leader. Entered the final round one stroke ahead of Esteban Toledo. Carded a 2-under 70 to secure a four-stroke victory over four players.
Surgery: Pulled out of next two PGA TOUR starts, the Genesis Open and The Honda Classic. Released statement: "My doctors have advised me not to play the next two weeks, to continue my treatment and to let my back calm down. This is not what I was hoping for or expecting. I am extremely disappointed to miss the Genesis Open, a tournament that benefits my foundation, and The Honda Classic, my hometown event. I would like to thank Genesis for their support, and I know we will have an outstanding week." In April, announced on his website he had undergone further back surgery. The operation was performed by Dr. Richard Guyer of the Center for Disc Replacement at the Texas Back Institute.
Buick Invitational: In first start of PGA TOUR season at the Buick Invitational, came from two strokes back in the final round to post seventh consecutive TOUR victory, dating back to the 2006 Open Championship. Victory was fifth career Buick Invitational triumph, his third event with five-plus victories (CA Championship and Bridgestone Invitational, both six times), and the 55th of his PGA TOUR career.
World Golf Championships-Dell Technologies Match Play: In his first start at the World Golf Championships-Dell Technologies Match Play since 2013, and first start in the state of Texas since 2005, advanced to the Quarterfinals to finish T5 in the event. Playing at Austin Country Club for the first time in his career, earned two points to advance out of his group after defeating Aaron Wise and Patrick Cantlay. Suffered a 2-and-1 loss to Brandt Snedeker. Went head-to-head with Rory McIlroy for the first time with their match up in the Round of 16. Defeated McIlroy, 2 and 1, before falling to Denmark's Lucas Bjerregaard, 1-up.
Surpassed Greg Norman for most weeks at No. 1 in the Official World Golf Ranking following PGA Championship with his 332nd combined week at the top. Consecutive weeks reign at No. 1 ended at 264, as Vijay Singh took over world No. 1 on Sept. 6, the week following the Deutsche Bank Championship. Entered 2005 season with streak of 133 consecutive made cuts intact.
In 2000, Woods won six consecutive events on the PGA Tour, which was the longest winning streak since Ben Hogan did it in 1948. One of these was the U.S. Open, where he broke or tied nine tournament records in what Sports Illustrated called "the greatest performance in golf history", in which Woods won the tournament by a record 15-stroke margin and earned a check for $800,000. At age 24, he became the youngest golfer to achieve the Career Grand Slam. At the end of 2000, Woods had won nine of the twenty PGA Tour events he entered and had broken the record for lowest scoring average in tour history. He was named the Sports Illustrated Sportsman of the Year, the only athlete to be honored twice, and was ranked by Golf Digest magazine as the twelfth-best golfer of all time.
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.