The Oregon Golf Club in West Linn, Oregon, is hosting the LPGA Tour this week for the Cambia Portland Classic.
Pajaree Anannarukarn, Gemma Dryburgh and Carlota Ciganda are tied atop the leaderboard after the first round.
Anannarukarn played a nearly flawless round with just one bogey on the card, offset by five birdies for an opening 4-under 68.
Dryburgh had a more up-and-down day compared to her fellow co-leaders. She carded three bogeys, but those were erased with five birdies and an eagle. The big bird came on the par 4 7th.
Ciganda made a boatload of birdies during her round today (seven), but they were neutralized by a bogey on two and a double on 14.
World No. 2 Jin Young Yo is just one shot back, sitting at 3 under. United States Solheim Cupper Jennifer Kupcho struggled throughout the day, ending her round with a 1-over 73.