Harigae made nine birdies, helping her to a round of 64 and a score of seven-under par.

It puts her a shot ahead of young Swedish golfer, Ingrid Lindblad, the European Ladies Amateur Championship winner from 2021.

Lindblad's six-under-par is the lowest score by an amateur in the tournament's history.

"I was putting really well out there today," said Harigae to the LPGA after the first day of competition.

"I haven't had any tournaments or rounds so far this year where I was putting confidently, so today was the first day.

"I'm just being appreciative of where I am, really taking in the moment, but at the same time, not trying to put so much precedent on how big the moment is.

"It's another day on the golf course, another hole. 

"You just have to execute the shots and putts out there."

Three golfers are sitting three shots off the lead on four-under, one of them being Australian Minjee Lee, the 2021 Evian Championship winner.

Anna Nordqvist of Sweden, a three-time major winner has put herself in a strong position to win a fourth tournament, sitting level with Lee and the United States' Ryann O'Toole.

O'Toole's compatriots 2014 Chevron Championship winner Lexi Thompson and Ally Ewing are on three-under.

World number one Ko Jin-young is on two-under par with nine other golfers including fellow South Koreans Park Sung-hyun and Kim Sei-young.

Nelly Korda, the American world number two, is on one-under, while her sister Jessica Korda is one-over par, alongside world number three Lydia Ko from Australia.

Defending champion Yuka Saso from Japan is a long way off the pace at six-over par.