South Korea's Inbee Park shot a final-round 71 to became the youngest ever winner of the US Women's Open.
The 19-year-old finished on a nine-under 283 to win by four strokes from Sweden's Helen Alfredsson at the Interlachen Country Club in Minnesota.
Park was the only player to break par in every round in securing her first win on the LPGA Tour.
Scotland's Catriona Matthew was the best of the British players, finishing with a 73 to climb up to 17th.
England's Karen Stupples finished with a 75 and in a tie for 31st on five over - a mark that also included world number one Lorena Ochoa.
Scot Janice Moodie, the third Briton to make the cut, had a closing 75 for 12 over par and in a tie for 64th.
It was a disappointing final US Open for three-time champion Annika Sorenstam but the Swede, who will retire at the end of the year, finished in spectacular style.
606: DEBATE
Needing a birdie at the final to break 80, she holed out with a six iron from 199-yards for an amazing eagle three.
Park eclipses 1998 champion and fellow South Korean Se Ri Pak as as the previous youngest winner of the tournament at the age of 20.
She started the final day a shot behind American Stacy Lewis but was one ahead after birdies at the first two holes.
Park was four shots clear and cruising to victory by the time she made her fourth birdie of the day from six feet at the 13th.
"It's really an honour and very special for me that I won the event 10 years after I start playing," Park said.
"Everything happened so fast. It's scary. I really tried to stay calm, but it was so exciting, I couldn't do it. This is my day."
Lewis, who playing in her first professional tournament, shot a five-over 78 and tied for third place alongside South Korean In-Kyung Kim (75) and Brazil's Angela Park (73).
For 43-year-old Alfredsson it was the second time she had tied for second at the US Women's Open.
~RS~q~RS~~RS~z~RS~50~RS~)