PHOENIX » Karrie Webb flew up the leaderboard with a course-record 9-under 63, then waited about 90 minutes to see if anyone could catch her in the JTBC Founders Cup.

No one could Sunday, giving the 39-year-old Australian her second victory of the season and second in four years at Desert Ridge’s Wildfire Golf Club.

"I didn’t expect to be sitting here at the start of the day," Webb said. "Even, actually, when I finished the day, I didn’t expect to be sitting here. So I feel a little bit lucky, I guess, to be sitting here. But it doesn’t make it feel any less special."

For the second time in the event, Webb overcame a six-stroke deficit in the final round. In 2011 in the inaugural tournament, she shot a 66 for a one-stroke victory.

"I just love the feeling of this event," Webb said.

The Hall of Famer had 10 birdies and a bogey, playing the back nine in 6-under 30. She birdied five of the last six holes, finishing with a 20-footer on the par-4 18th.

"I definitely putted probably the best I have all week," Webb said. "Worked on a few things last night and really got the ball rolling on the back nine."

Webb also rallied to win the Women’s Australian Open last month and has 41 LPGA Tour victories to match founding player Babe Zaharias for 10th place.

Third-round leader Lydia Ko parred the final three holes to finish a stroke back along with 2013 winner Stacy Lewis, Azahara Munoz, Amy Yang and Mirim Lee.

The 16-year-old Ko shot 70. She had a three-stroke lead after birdieing Nos. 2-5, slipped back with bogeys on Nos. 6, 9 and 11 and pulled within one with a birdie on the par-5 15th.

Hawaii’s Michelle Wie shot a 70 to finish in a tie for 12th and earn $24,866.