US Women's Open: 11-year-old Lucy Li becomes youngest ever women to qualify after winning qualifier at Half Moon Bay in California

The women's US Open is being held the week after the men's event on the same course, Pinehurst No. 2

Girls 10-11 category champion Lucy Li from Redwood City, California poses with her trophy during the National Finals of the 2014 Drive, Chip and Putt Championships April 6, 2014 at Augusta National (Getty Images)

Eleven-year-old American Lucy Li has become the youngest player to qualify for the US Women's Open by winning the sectional qualifier at Half Moon Bay in California.

But she will amazingly not be the youngest ever competitor in the event, with Beverly Klass turning professional as a 10-year-old in 1967 and playing in the US Open that year.

Klass, who was the victim of an abusive father, made the cut in three of her four tournaments before the LPGA barred her by instituting a minimum age of 18.

Li shot rounds of 74 and 68 on the par-72 Old Course on Monday to win by seven shots and secure her place at Pinehurst from June 19-22.

The women's US Open is being held the week after the men's event on the same course, Pinehurst No. 2.

Li already has some experience of a major championship venue after winning the girls aged 10-11 division in the inaugural Drive, Chip and Putt contest at Augusta that preceded the Masters this year.

PA