VERONA — Dustin Johnson's memories of Central New York will include some of the worst weather he has ever played golf in, and a couple of the best shots and putts he has ever hit in his brief PGA Tour career.

He'll also have a beautiful new trophy to adorn the trophy room in a house he hopes to purchase after capturing his first professional tournament Sunday at Atunyote Golf Club.

"I probably won't even remember the nasty weather," Johnson said Sunday after making birdies on the final two holes to overtake playing partner Robert Allenby and forge a one-stroke victory in the Turning Stone Resort Championship. "I knew I was capable of eventually winning. I wasn't quite sure it would happen this soon."

Johnson, who attended Coastal Carolina University, fired a 3-under-par 69 to win on a day when none of the top challengers made a big move.

Allenby, the top-ranked player in the field at 13th starting the week, managed only a 2-under-par 70. He held a two-shot lead over Johnson with four holes to play, but could not complete his fourth tour win.

"I hit the ball about as well as I could have," Allenby said. "Unfortunately, I never really had any confidence with the putter."

There was a seven-way tie for third at 7-under-par, including second-round co-leader Charles Howell III, 19-time winner Davis Love III and Woody Austin.

Howell, who began the day tied with Tag Ridings, fired a 1-over-par 73, while Love shot 70 and Austin 69. Ridings skied to an 8-over-par 79 and fell into a tie for 27th spot.

For Johnson, who finished 14th in the tour qualifying tournament last fall and recorded top 10s at the Sony Open in Hawaii and the AT&T Pebble Beach Pro-Am early this season, the victory proved all of his hard work in recent months had paid off.

"I've tried to re-focus my game," said Johnson, who won $1.08 million and jumped from 128th to 41st on the money list with $1,715,545. "My practice sessions have been a lot better. I've really concentrated on my posture, set-up and take away. And my short game has improved a lot."

Despite starting the day three shots off the lead, Johnson said he felt confident. "I was nice to be in the hunt. I thought I would be more nervous, but I was actually very calm."

Johnson parred the first five holes. But a 40-foot birdie putt on No. 6 kick-started his round. He also birdied the par-5 8th to move to 8-under par, but gave that back with a three-putt bogey on No. 9.

Allenby seized the lead on the front nine with birdies on 2, 4 and 5 to shoot a 3-under-par 33 and make the turn at 9-under.

Johnson drew even with Allenby with a birdie-4 on No. 12. But he hit his tee shot in the water on No. 13 and made bogey to drop a shot back again.

Then came Johnson's big break of the day. His drive on No. 14 was headed for the small creek left of the fairway. But it hit a rock and bounced back in play. He was able to make par from the rough.

"I wasn't sure where it ended up," Johnson said. "But you have to get a few breaks during a week like this. I guess this was mine."

Allenby's lone bad drive of the day on 15 into the woods forced him to pitch out short into a trap. His 70-yard bunker shot came up 12 feet short and he missed his par putt.

Johnson was over the green in two, but sunk a huge 9-footer for par to stay a shot behind.

A great up-and-down from the greenside bunker on the par-3 16th gave Johnson renewed confidence. On 17, he bombed a drive, hit a wedge to five feet and drained the putt to tie Allenby.

With his adrenaline flowing, Johnson smoked a 355-yard drive on the par-5 18th hole, nearly 100 yards past Allenby. Allenby laid up to 150 yards with his second shot.

Said Johnson: "I was in between clubs, a 3-iron or rescue. I hit the rescue solid but just a little long."

His ball came to rest in the rough behind the green. After Allenby hit his third to 12 feet, Johnson feathered a delicate chip 8-feet, 5-inches past the hole.

Allenby left another putt just short, giving Johnson an opening. He calmly stroked the ball into the center of the cup and pumped his first in celebration.

"You don't really think about making the putt," he said. "All you want to do is hit it solid and it has a great chance of going in."

nNOTES:With the victory, Johnson earns a two-year tour exemption and an invitation to next year's season-opening Mercedes-Benz Championship. He is the tour's 11th first-time winner and the third rookie (Andres Romero,Chez Reavie) to win a tournament. ... With Johnson andCharles Warren(tie 10th) jumping into the top 125 on the money list,Rick BeemandTom Lehmanfell out. The top 125 at the end of the year earn full exemptions net year. ...Joey Sindelarof Horseheads played by himself in the final round, shooting 74 to finish in a tie for 68th place.