The New Zealander won the opening major of the season, the ANA Inspiration, in April, which added to her victory at The Evian Championship last year.

Now, the 19-year-old will be hoping to add the US Open title and she will take some beating due to her fine record in California.

She has won twice in the state already this year, including the ANA Inspiration success at the Mission Hills Country Club.

Six of her her 13 LPGA Tour titles have been won on the West Coast of the United States and Canada.

"It reminds me of New Zealand,” Ko said. 

“When you go to places that aren’t home but feel a lot like home, it makes a difference.”

Ko's biggest challenge could come from world number two Brooke Henderson, who will be looking for back-to-back majors after she won the Women's PGA Championship in June.

That was the Canadian's first major title and came after she beat her fellow 19-year-old Ko via a playoff.

“Getting the major championship win in Washington, knowing that I can win a major championship, was definitely a huge momentum changer,” Henderson said. 

“And then coming off a win in Portland, I think it really is going to give me a lot of confidence.”

Home hopes could rest with Lexi Thompson, the 21-year-old from Florida and winner of the ANA Inspiration in 2014.

Another American, Stacy Lewis, will be looking to add to her two major titles while Thai player Ariya Jutanugarn will be hoping for her first success on the big stage after an impressive run of form.

The competition has the biggest purse in women's golf with a prize pot of $4.5 million (£3.5 million/€4 million).

South Korea's Chun In-gee is the defending champion.