(CNN) -- England's Justin Rose claimed his second PGA Tour victory in three events as with a one-shot win in the AT&T Championship at Aronimink Golf Club in Pennsylvania.
Rose made a major breakthrough when he won the Memorial tournament at Murfield Village last month and emphasized his impressive form with a final round 70 for a 10-under total of 270.
American Ryan Moore was his closest challenger, charging through the field with a five-under-par 65 to set the clubhouse target on nine under.
But Rose kept his nerve to par the closing two holes to secure the title.
The 29-year-old also headed the field after three rounds at the Travelers Championship before falling away on the final day, and leading by four overnight was anxious to avoid a repeat.
He started with a bogey on the first hole and saw his lead cut immediately to two, but he quickly retrieved it at the third and went into red for the day with a three at the sixth.
He followed a dropped shot at the eighth with a brilliant eagle on the ninth, but misjudged putts on the 10th and 11th saw him back to level par for the day and made a close finish inevitable.
Jeff Overton finished in third, two shots back after a 67, with Charlie Wi in fourth, a further shot behind.
Meanwhile, defending champion Tiger Woods failed to break par for the fourth straight round as he closed with a one-over 71 to finish off the pace on four-over 284.
But the world number one took some heart ahead of his tilt at the British Open at St. Andrews by his play from tee to green.
"I've driven the ball better this week than I have in a very long time," he told the official PGA Tour website.
But it was on the greens that Woods struggled.
"I putted awful all week," Woods said. "It is what it is."
He now heads to Ireland to play in a charity event before going to the home of golf where he will attempt to emulate his 2000 triumph.
Rose, who missed out on qualifying for the U.S. Open despite his Memorial triumph, will also be there after his latest victory which was the sixth by a British player on the PGA Tour this season.