South Korean Inbee Park fired a two-under 71 Saturday to capture the US Women's Open, becoming the youngest champion in history.

The 19-year-old Park started the day two shots adrift of the leader before rallying to finish at nine-under 283.

"This is very special for me," Park said. "In the 10 years I have been playing golf it finally happened."

Sweden's Helen Alfredsson shot a two-over 75 to finish second while third round leader Stacy Lewis stumbled to a five-over 78.

Park shot under par in all four rounds and became the fifth first time winner on the LPGA Tour this year

"Everything is happening so quickly for me. It is a little scary."

Park took the lead with birdies at the first two holes and was never caught as she carded a stellar round in strong winds at Interlachen Country Club.

Park, who did not have a three-putt the entire championship, is the third South Korean to win the biggest title in women's golf, joining Se Ri Pak (1998) and Birdie Kim (2005).

A top junior talent before turning pro two years ago, she won the 2002 U.S. girls' junior championship, and was a five-time junior All-American.

She finished 37th on the money list last year in her rookie season on the LPGA Tour.

AFP