Australian Adam Scott claimed his second Qatar Masters title with a three-stroke victory over Swede Henrik Stenson after he produced an 11-under-par course record 61 in the final round.

Stenson finished with a bogey-free 65 to claim his second successive second-place finish at Doha Golf Club but was unable to chase down Scott.

The 2002 winner had stormed up the third-round leaderboard with a seven-under-par 65 on Saturday which had left him three strokes adrift of overnight leader Johan Edfors at the start of play.

Scott is the current world number eight, but will move up three places on Monday after he collected his sixth European Tour title with current incumbent Ernie Els having not played this week.

South Africa's Charl Schwartzel (67) finished 15-under, with Edfors a further stroke back and a shot clear of Order of Merit leader Lee Westwood.

Westwood claimed his 10th top-10 finish in 11 events after carding a final round seven-under-par 65, which included a 10-foot birdie putt at the last, but he was left to rue a third-round 73.

Scott started with five straight birdies in his final round before the run was finally halted when he secured a solid par four at the sixth after he hit his approach shot into the fringes on the opposite side of the green.

That allowed Edfors, playing two groups behind, to temporarily move within one with his first birdie of the day at the fifth.

But Scott responded with a 10-foot birdie putt at the seventh to take a two-stroke cushion over Edfors and Stenson as the Australian reached the turn.

The back nine began in similar fashion with three straight birdies and, after two consecutive pars, the 10th came with a snaking 25-foot putt at the 15th to move four strokes ahead of Stenson.

The 27-year-old from Adelaide birdied the 17th which took him to 20 under par, but he missed the chance to become the first player in European Tour history to card a 59 as he cautiously played his third to within 20 feet before he putted.

After he collected his BMW 650i Coupe for breaking the course record, previously set at 63, Scott watched as Stenson and Edfors failed to chase him down despite late birdies at the 16th.

Colin Montgomerie claimed a sixth-place finish with a final round three-under-par 69 to finish at 11 under overall, with Nick Dougherty (69), Sergio Garcia (67) and David Howell (69) a further shot back.

Rory McIlroy's charge suffered an early setback and the ambitious 18-year-old, who began his third round with an eagle three at the first hole, shipped three bogeys over his first three holes to slip back to six under overall

But the youngster, who produced a brilliant bogey-free, six-under-par 66 yesterday, recovered with a birdie at the seventh to reach the turn in 38 before beginning the trip home with another birdie and picking up another shot at the 12th.

However, bogeys at the 16th and 18th would see Co Down teenager slip back to six under.