JASON Day has become the highest-ranked Australian player in the world for the first time after surviving a four-way playoff to win the Farmers Insurance Open at Torrey Pines in San Diego.
Day shot a final round two-under par 70 to finish on nine-under, level with Americans Harris English, JB Holmes and defending champion Scott Stallings.
After birdies on the first-playoff hole - the par-five 18th - Day and Holmes headed to the par-three 16th where a regulation par by the Queenslander was enough to take the title, his third win on the PGA Tour.
As well as pocketing $A1.461 million, the victory moved Day to No.4 in the world, just ahead of former world No.1 Adam Scott, whose wife Marie Kojzar is expecting the couple's first child within days. Scott is yet to play in 2015 and is likely to return in the Honda Classic which starts in Florida on February 26.
"It's an amazing feeling," Day said.
"I've been working so hard for this. I was visualising myself holding the trophy, just like I did at the Match Play.
"I'm really proud of myself to hang in there and grind it out."
The 27-year-old, in his eighth year on the PGA Tour, said his biggest priority this year had been to stay injury-free after battling a wrist complaint for the first half of 2014.
"It's a good start to the year," Day said. "Hopefully I can stay healthy."
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