MIAMI (REUTERS) - Jason Day continued his astonishing streak with an emphatic victory at the WGC-Dell Match Play in Texas on Sunday.
The Australian dusted South African Louis Oosthuizen 5&4 in the afternoon final at Austin Country Club to clinch his sixth win in his past 13 tournaments.
Day, who sank a 12-foot par putt at the final hole to beat defending champion Rory McIlroy one-up in a morning semi-final, was already assured of regaining his world No. 1 ranking from American Jordan Spieth.
"It's been an amazing week. I played wonderfully this afternoon," Day, 28, said at the victory presentation, adding that he had only been a "50-50" chance to play on Thursday after tweaking his back during the opening day of competition.
"I've been able to not only utilise the great short game that I've had from last week to this week, but to be able to play the way I did from tee to green and then on top of it hit the clutch shots has been really fantastic."
Oosthuizen, the 16th seed, qualified for the final when he beat Spaniard Rafa Cabrera-Bello 4&3 in the other semi.
Day lost the first hole of the final, but that was his only setback as he relentlessly kept the pressure on Oosthuizen and turned the back nine into a victory march.
In the battle for third place, Cabrera-Bello beat McIlroy 3&2 in the consolation match between the two semi-final losers.
Day's victory, his second in as many weeks on the PGA Tour and the ninth of his career, is his second in three years in the only World Golf Championships event that uses the match play format.
He also made it four wins in five weeks for Australian players on the PGA Tour, after Adam Scott won twice in Florida at the Honda Classic and WGC-Cadillac Championship.
Day's hot streak stretches back to last July, when he missed out on a spot in the British Open by one stroke at St. Andrews.
He won the Canadian Open the following week, and then picked up his first Major victory a fortnight after that at the PGA Championship.
He now will have a week off to recharge his batteries before the first Major of the year, the Masters, where he no doubt will be the man to beat.
"It's never easy winning," he said. "I can't get too complacent with how I'm playing. I need to focus on the little things that make me great and go into Augusta and prep the exact same way I have in the past."