( CNN ) -- Rory McIlroy has won the Deutsche Bank Championship by one stroke after shooting a final round 67 at the TPC Boston on Monday . The Northern Irishman finished on 20-under par , one stroke in front of overnight leader Louis Oosthuizen , who fired a final round 71 . The victory takes McIlroy 's career tally of PGA Tour victories to five , three of which have come this season . Tiger Woods finished third on 18-under par thanks to a final round 66 with Phil Mickelson ( 66 ) and Dustin Johnson ( 70 ) tied for fourth on 14 under . McIlroy , who regained the world No.1 spot with victory in last month 's U.S.PGA Championship , surged to the top of the leaderboard early on in his final round , firing five birdies on the opening nine . It was a lead he never relinquished , despite the best efforts of Woods and , in particular , Oosthuizen -- the South African had a chance to force a playoff on the final green , but missed his birdie putt . The win sees McIlroy replace American Nick Watney at the top of the FedExCup points standings while in finishing third , Woods passed another milestone in his remarkable career . The 14-time major winner picked up $ 544,000 , helping him become the first player to surpass $ 100 million in PGA Tour earnings .
American shoots a final round 67 to claim a one stroke victory . Overnight leader , Tiger Woods finishes first ; Tiger Woods two shots back in third . Woods becomes third player to earn 544,000 on the PGA Tour .