Phoenix Open:Australia's Aaron Baddeley took advantage of a stumbling finish by American Jeff Quinney to win the Phoenix Open by one shot in Scottsdale, Arizona on Sunday.

Baddeley fired a seven-under-par 64 in near-perfect conditions at the TPC Scottsdale to clinch the second PGA Tour title of his career.

The 25-year-old, who trailed fellow Scottsdale resident Quinney by two strokes overnight, birdied four of the last six holes to finish on 21-under 263.

Quinney, who led the tournament after the second and third rounds, had been two strokes clear with two holes to play but bogeyed 17 and 18 for a 68 and third place at 19 under.

Compatriot John Rollins, who lost a playoff for the Bob Hope Classic two weeks ago, climbed into second spot by shooting a best-of-the-day 63.

"I'm sure Jeff is disappointed about how he finished, but I was really just trying to put pressure on him towards the end," Baddeley told reporters.

"When I got three back (with four holes to play), I was just thinking if I can be one back playing the last hole, I've got a chance. I just tried to make some birdies, and that's what I did.

"I was definitely a lot calmer today than I was at Hilton Head coming down the stretch there," Baddeley added, referring to his maiden PGA Tour victory at last year's Heritage Classic.

"I had a lot more confidence probably because I had been there, but also because I was more comfortable in my golf swing from all the hard work I've been putting in."

For most of the final round, it seemed that PGA Tour rookie Quinney was heading for a maiden title.

Two ahead of the pack overnight, he made a fast start in near-perfect conditions on the sun-drenched Stadium Course with a record Sunday crowd of 93,475 in attendance.

Quinney birdied four of the first seven holes before reaching the turn in four-under 31 to retain his two-stroke cushion.

Although he dropped his first shot of the day at the par-four 10th, he hit back with birdies on 13 and 14 to stay in charge.

Baddeley, however, began to make his move. After offsetting a birdie at the 13th with his only bogey of the round at the 14th, he picked up further shots on 15 and 16, where he rolled in a 20-footer.

Playing partner Quinney bogeyed the 17th after pulling his drive left into water while Baddeley birdied the hole from 10 feet for a two-shot swing to take the outright lead for the first time.

After Quinney found the front right greenside bunker with his approach at the last en route to another bogey-five, Baddeley had the luxury of two-putting for a regulation par and a one-shot victory.

"Obviously it didn't end the way I wanted it to but, all in all, I'm pretty happy with the performance," Quinney said. "I was sleeping on the lead the last couple days and it was a lot of pressure and I'm happy how I handled the whole situation.

"I played pretty good golf today, felt in control of my game just like I have been all week. Baddeley played really good and put the pressure on me. We had a lot of fun, though."

Among the big names playing the fifth event on the 2007 PGA Tour, world number seven Vijay Singh closed with an eight-birdie 64 to finish seventh at 15 under.

American David Toms, winner of the 2001 PGA Championship, was a further shot back in a tie for eighth after carding a second successive 68.