Inbee Park doubled her lead to six strokes on the opening hole Sunday and ran away with the Kraft Nabisco Championship for her second major title.
The 24-year-old South Korean made a 20-foot birdie putt on the par-4 first, and playing partner Lizette Salas had a double bogey for a three-shot swing.
"That made my day much easier," Park said. "I holed a long one on the first hole. A birdie start is always a good thing. That gave me a lot of confidence."
The 2008 U.S. Women's Open winner at Interlachen, Park shot a 3-under 69 at Rancho Mirage's Mission Hills course to finish at 15-under 273, four shots ahead of South Korea's So Yeon Ryu.
Park, who won $300,000, celebrated her fifth LPGA Tour title with the traditional leap into Poppie's Pond. South Korean players have won three straight majors, and Asians have won eight in a row.
Ryu, playing five groups ahead of Park, shot a bogey-free 65 -- the best round of the week.
"She looks like she played another golf course," said Ryu, the 2011 U.S. Women's Open champion. "This golf course is really hard."
Norway's Suzann Pettersen (69) and Sweden's Caroline Hedwall (68) tied for third at 9 under.
Salas, who grew up in Azusa, had a 79 to tie for 25th at 2 under.
"Very disappointed in myself," she said. "But everyone's going to have those days where they're just not going to be able to score."
Pleasanton native Paula Creamer (73) and Jennifer Johnson (68) were the top Americans -- among six players tied for 13th at 4 under.
PGA Tour: Martin Laird tied the TPC San Antonio record with a 9-under 63 to hold off Rory McIlroy and win the Texas Open for his first title in more than two years.
Laird began the day four shots back but posted a bogey-free round to finish at 14-under 274. He had missed four of eight cuts this year.
"I came in here quietly confident, even though my record this year has been poor to say the least," said Laird, who earned $1,116,000 and an invitation to this week's Masters.
McIlroy shot a 66 to finish two strokes back -- his best showing of the year.
Third-round leader Billy Horschel (71) shared third with Jim Furyk (69) and Charley Hoffman (69) at 277. Furyk holed out from 104 yards to eagle the par-5 18th.
McIlroy had struggled for much of the year and said his primary focus this week was on preparing for Augusta National (Ga.).
"I feel my game's in really good shape," he said. "A round like that gives me a nice bit of confidence."