Graeme McDowell ends two-year victory drought with triumph at World Golf Challenge in California Certainly I will draw some confidence from this one. The game hasn't given me a huge amount this year. McDowell started the final day two shots ahead of Keegan Bradley and ensured success with a strong back nine. He was one under at the turn, having picked up a stroke at the par-five second, but strengthened his case on the back nine with four more birdies to balance against a solitary bogey-six at the 13th. Bradley started strongly, with birdies at holes two and five but was level par for the front nine after giving back shots on eight and nine. He finished three under for the round as he responded to McDowell's surge but it was not enough. The pair were well ahead of the rest of the 18-man field, Bo Van Pelt finishing third four shots back from Bradley and seven adrift of McDowell. Tournament host Tiger Woods finished in a share of fourth alongside Rickie Fowler and Jim Furyk on nine under. Zach Johnson spared England's Ian Poulter last place with a dreadful round of seven over that included three double bogeys and three bogeys.