Many courses in the PGA Tour rotation (including major championship sites like Augusta National) have added yardage to their tees in an effort to reduce the advantage of long hitters like Woods; this is a strategy that became known as "Tiger-Proofing". Woods said he welcomed the change, in that adding yardage to courses did not affect his ability to win.
World Golf Championships-Cadillac Championship: Posted a final-round, 6-under 66 to finish T10 at the World Golf Championships-Cadillac Championship, his first top-10 of the season and best showing since a T4 at the 2010 U.S. Open. It marked the 11th time in as many starts that he has finished with a top-10 at the event and the eighth time in as many starts inside the top 10 at the TPC Blue Monster at Doral. The showing represented his best round on TOUR since a second-round, 6-under 65 at the 2010 Deutsche Bank Championship. Played the first three rounds with Phil Mickelson, the first time the two have been paired together for three rounds in a PGA TOUR-sanctioned event. The two have had 28 official pairings on TOUR and 29 counting the 2009 World Golf Championships-HSBC Champions.
World Golf Championships-Accenture Match Play Championship: Captured second consecutive World Golf Championships-Accenture Match Play Championship for 40th career PGA TOUR win. With six match victories, including a 3-and-2 win over Davis Love III in the 36-hole finale, has won 12 consecutive matches, and overall Accenture Match Play Championship record is 20-3.
The Open Championship: Earned 10th professional major title at The Open Championship at age 29 years, 6 months and 17 days in his 35th major as a professional. Posted rounds of 66-67-71-70–274 at St. Andrews to defeat nearest challenger Colin Montgomerie by five strokes. The youngest and quickest to win each of the four major championships twice. Jack Nicklaus was the first to accomplish the feat at 31 years, 1 month and 7 days when he won his second PGA in 1971 in his 37th major as a professional. Sixth player in The Open Championship history to win in wire-to-wire fashion–Ted Ray (1912), Bobby Jones (1927), Gene Sarazen (1932), Henry Cotton (1934) and Tom Weiskopf (1973).
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.