Australia's Brett Rumford claimed his second win in eight days on the European Tour with victory in the Volvo China Open.
Rumford carded a final round of 68 at Binhai Lake Golf Club to finish 16 under par, four shots clear of Finland's Mikko Ilonen (71), with France's Victor Dubuisson (68) third on 11 under.
The 35-year-old from Perth, whose win in the Ballantine's Championship in Korea last week was his first since 2007, began the day one shot ahead of playing partner Ilonen and extended that advantage to three with a flawless front nine of 33.
The lead was down to one when Ilonen birdied the 10th and 11th, but Rumford edged further in front with a birdie on the par-five 12th and then holed from 45 feet for birdie on the 13th and 14th for good measure.
With Ilonen dropping shots on those two holes Rumford was suddenly six clear with four to play, allowing him the luxury of dropping shots at the 15th and 17th and still easing to victory.
The winner's cheque for £345,000 takes Rumford to the top of the Race to Dubai and, from 253rd in the world rankings a fortnight ago, to a place inside the top 80.
The last back-to-back winner on the European Tour was Branden Grace, who won the Joburg Open and Volvo Golf Champions in his native South Africa in January 2012.
Damien McGrane finished best of the Irish on two under.
Rumford admitted it was "quite surreal" to put back-to-back victories.
"As with last week I am kind of speechless at the moment, it's quite surreal," he told Sky Sports 2. "It's really hard to try and go back to back, it's the first time I've actually played the week after a win so I am more than pleased.
"It's quite a feat, it's very special."