Nasa Hataoka and Mariajo Uribe joined the second-ranked Jutanugarn atop the leaderboard at the LPGA event – with Minjee Lee, Canadian star Brooke Henderson and three-time champion Lydia Ko two strokes back.

Jutanugarn birdied the first four holes in the morning round and finished with nine birdies and a bogey.

"Today my goal was don't worry about the future too much," Jutanugarn said. "Don't think about what I'm going to shoot today. Just try to focus on things I can control."

The soft conditions didn't last long on the greens.

"It's pretty tough," Jutanugarn said. "It's getting more firm. It's very quick."

Hataoka, the Japanese player who won the NW Arkansas Championship in June for her first Tour title, had nine birdies and a bogey.

"There was no wind today so I was able to attack the pins," she said through a translator.

RIGHT: Minjee Lee shot six-under 66 to share sixth place after the opening round of the 2018 CP Women’s Open. PHOTO: Vaughn Ridley/Getty Images.

Uribe, from Colombia, birdied five of the first seven holes in her bogey-free morning round.

"It's nice to start with a bogey-free round to actually see my golf game getting where I know it is," Uribe said. "It's going to be a good week."

Angel Yin and Nanna Koerstz Madsen shot 65, and Henderson and Ko were at 66 with Minjee Lee, Jessica Korda, Austin Ernst, Amy Yang and Mariah Stackhouse.

"I've been playing well for the whole year and now I'm scoring," Yin said.

Henderson had eight birdies – six in a seven-hole stretch from the 4th to the 10th – and two bogeys in her afternoon round.

"It was really solid today," Henderson said. "I kind of got off to a little bit of a shaky start with a bogey on the 1st hole, but I made a ton of birdies today and that's always a really good sign."