Inbee Park of South Korea shot a 6-under 66 on Sunday to win the Evian Masters for the first time, beating veteran Karrie Webb and overnight co-leader Stacy Lewis by two shots.
It was Park's second LPGA Tour title and the first since the U.S. Open in 2008. She finished with a 17-under 271.
"It feels great. It was four years ago but it feels longer than that," Park said. "I finished the round with some really strong putting today."
The 24-year-old Park made birdies on the last three holes to coast home.
Lewis, who shared the overnight lead with Park, made a run at the end, but her long putt for eagle on the 18th came too late.
China's Shanshan Feng made a late charge as well, shooting a 66 that also included an eagle on the 18th. She finished tied for fourth at 14 under with South Korean amateur Hyo Joo Kim (68) and American Natalie Gulbis (68).
Feng's shot of the day drew a roar from the grandstand on No. 18 when she chipped out of the bunker, and the ball looped around in a semi-circle from right to left then dropped in for an eagle.
The pressure was on Park to respond, and she did, sinking a birdie on No. 16 to move to 15 under.
Lewis, who had been seeking her third LPGA Tour title of the year, fell behind with a poor run in the middle of her round — she went eight holes without a birdie, including a bogey on No. 14.
This is the last Evian Masters before the event becomes the Evian Championship and the fifth women's major in September 2013.
Lewis, who tied the course record with a 63 on Friday, missed a birdie on the fourth hole as her shot drifted left. After missing a good birdie chance on the fifth, she hunched forward in frustration with hands on her thighs.
Park birdied the ninth to take the lead at the turn and then moved to 14 under with another birdie on No. 10.
Webb and 2007 Evian winner Gulbis had a chance to make up ground after Park bogeyed the 11th.
Webb, the 2006 champion, chipped out of the green rough to sink a birdie on No. 13 to pull even with Gulbis and Park at 13 under.