the Memorial Tournament presented by Nationwide Insurance: Moved into a tie with Jack Nicklaus for second on the all-time PGA TOUR victories list, with 73, after his two-shot victory at the Memorial Tournament. Trails only Sam Snead's 82 wins after a two-shot victory over Andres Romero and Rory Sabbatini at Muirfield Village GC. Posted his 73rd career victory at age 36 years, 5 months, 4 days, nearly 10 years younger than Nicklaus when he won his 73rd tournament (46 years, 2 months, 23 days) and almost seven years younger than Snead when he posted his 73rd victory (43 years, 9 days). Collected his fifth career victory at the Memorial Tournament and won in come-from-behind fashion for the 21st time in his career after entering the final round four shots off the 54-hole pace. Trailed Sabbatini by two shots standing on the 15th tee but played his final four holes in 3-under, making birdie on Nos. 15, 16 and 18. Holed a flop shot from 49 feet, 10 inches from behind the green at the par-3 16th to tie Sabbatini for the lead at 8-under. Won the Arnold Palmer Invitational and the Memorial Tournament in the same year for the fourth time (2000-01, 2009 and 2012). Posted the 12th victory of his career in Ohio and won multiple tournaments in a season for the 13th time in his career.
Won seven times en route to capturing the inaugural FedExCup, cruising through the PGA TOUR Playoffs for the FedExCup with two wins and a T2 in three starts. Captured 13th career major championship (second all-time to Jack Nicklaus' 18) and finished the year with 61 official PGA TOUR victories, fifth all-time. Adjusted scoring average was 67.79, matching own record set in 2000. With 60 official rounds, won his seventh career Vardon Trophy and also captured the Byron Nelson Award.