There is no denying that Hannah Green has been in top form this season, and the Perth product has broken another record to prove it.
The West Australian, who won the PGA Championship in June, has fired the lowest round of her LPGA career in opening the Portland Classic with a brilliant eight-under-par 64.
Her spectacular belmish-free round in Oregon put the world No.26 alongside Korea's Mi Jung Hur atop the leaderboard.
Green hit eight of 14 fairways on the way to besting her record, a 65 previously shot in the first round of the 2019 LA Open, won by world No.4 Minjee Lee in April.
The 22-year-old acknowledged clutch putting as a key factor, including a birdie run in her last three holes (7th-9th).
“I knew putting was really key this week,” said Green, who needed just 23 putts on Thursday.
“I'd say it's one of the shorter courses that we play, and it definitely looked more narrow.
“I knew if I kept doing what I was doing and hitting good shots and just holing a couple putts here and there that you could post a really good score.”
Fellow Aussies Katherine Kirk, Sarah Kemp and Su Oh are tied for 52nd with two under 70 opening rounds, while Robyn Choi is one shot back in a tie for 68th.
Beyond the leaders, all eyes were on world No.1 Jin Young Ko, who came to Portland riding a streak of 106 consecutive holes without a bogey. That streak was snapped at 114 holes on the ninth, where she missed a 1m par putt to record her first bogey since 3 August, on the second hole of the third round of the Women’s British Open.