Jason Day has won the World Golf Championships match play final to land his second big trophy in two weeks.
The soon-to-be world No.1 Day beat South African Louis Oosthuizen five and four at the
Austin Country Club as he secured an incredible sixth win in 13 starts.
A sloppy bogey on the opening hole had the Australian one-down early but he drew level on the third hole and then birdied the fourth to take the lead.
He never relinquished the lead since, going two-up when Oosthuizen bogeyed the seventh.
A birdie on the ninth pushed his lead to three-up at the turn.
Day capped a brilliant performance with a stunning iron shot on the 14th - just a few feet from the pin - to end the tie.
In the battle for third place, Spain's Rafa Cabrera-Bello beat Northern Ireland's Rory McIlroy 3&2 in the consolation match between the two semi-final losers.
Earlier, Oosthuizen, the 16th seed, defeated the 52nd seed Cabrera-Bello 4&3
Oosthuizen made only two birdies, but that was enough to dispatch the out-of-sorts Cabrera-Bello, whose putting touch went missing.
Day disposed of world No.3 Rory McIlroy 1-up in a much-anticipated semi-final.
The 28-year-old dropped in a 13-foot par putt on the last to seal the deal.
"Moments like that I'll always cherish, being able to beat a former No.1 player in the world who is a tough competitor," Day said after the semi-final win.
"Being able to get myself through the day and not hitting it that great, but have the short game and be able to get the job done when I need to.
"Those are the moments where I'm the most proud, because earlier this year I spent a lot of hours, a lot of hours, just practising and trying to get my skills better and better.
"It's certainly paying off right now."
Day's victory means it is the second time this season an Australian has won in back-to-back weeks after he won the Arnold Palmer Invitational last week.
Adam Scott won the Honda Classic and WGC Cadillac Championship in successive weeks.
They occupy the top two positions on the season-long points list.