She has won three titles, finished runner-up twice and third once in world-class fields.
This week in California her dream of become the youngest major winner in history is fading. She still has plenty to play for and can finish strongly - and she'll be looking to maintain her perfect record of finishing as the low amateur in every major championship she has contested.
Meanwhile, another New Zealand golfer with a fine amateur record, Danny Lee, has reverted to his amateur putting style - propelling him into the outright lead of the inaugural Brazil Classic on the web.com tour. The former US Amateur champion carded a second consecutive six under par 65 at the Sao Paulo Golf Club overnight to take sole possession of the lead in Brazil before play was suspended.
Lee was two shots ahead of Swedish golfer Richard Johnson, who was four under for the day and 10 under for the tournament after playing 11 holes in his second round.
Lee believed his turnaround in form was due to returning to a simple tip he used when he was an amateur.
"I've started using the line on my ball again. It's really helped me with my alignment," the 22-year-old told the web.com tour website. "I was using it as an amateur and I'm not sure why I stopped. I used to just put the ball down and try to make a perfect stroke. Now, I don't worry about the line. All I've got to do is think about the distance."
It has worked so far with Lee making eight birdies and two bogeys in his second round to be in a great position to win his first title since claiming the WNB Classic in Texas in 2011.
Lee has made a solid start to the 2013 season. He has made three out of four cuts and his best result came when he finished tied sixth at the Chile Classic in March. He also finished in a share of 13th place at the season opening Sony Open in Hawaii on the PGA Tour.
The former European Tour winner is back on the web.com tour after failing to keep his card on the PGA Tour in 2012. He missed out in qualifying school by only one shot.
Lee, currently 26th on the web.com tour money list, needs to finish inside the top 25 to return to the PGA Tour in 2014.
Fellow Kiwi Tim Wilkinson is also right in the hunt in Brazil. The Manawatu left-hander, who opened with a four under par 67, is 16th on the money list and was three under through 10 holes to be on seven under par - in a share of third place, five shots back from Lee.