Wei-Ling Hsu has shot a bogey-free five-under 66 at Kingsmill Resort to take the first-round lead in the LPGA Tour event in Virginia.
Winless in her seven-year LPGA Tour career, the 26-year-old Taiwanese player birdied the River Course's two front-nine par 5s and made three in a row from the 12th to 14th in the morning round on Thursday.
"I feel quite the same from very first hole all the way to the 18th," Hsu said.
"I just kept waiting. I know my feeling is pretty good right now, even finish four (pars) in a row. I just keep simple and then just stay focused."
World No.3 Sei Young Kim and fellow South Korean Jiwon Jeon were a stroke back along with China's Ruixin Liu, Spain's Luna Sobron Galmes and Malaysian Kelly Tan.
Kim made her lone bogey on the par-3 17th – her eighth hole of the round – when a tap-in lipped out.
"I just try to tap in, finish, and it's lip out," the 12-time Tour winner said.
"I was like, 'What was that?' I'm like little shock. I told myself, 'How stupid am I?"'
American Stacy Lewis shot a three-under 68, as did compatriots Elizabeth Szokol, Tiffany Joh, Ryann O'Toole and Megan Khang.
"Played really solid and made a couple par putts," Lewis said.
"Two lip-outs for birdies, but other than that it was good."
Sarah Kemp and Katherine Kirk are the best of the Australian's in a tie for 12th after firing a two-under 69s.
Sarah Jane Smith (70) is a further stroke back with Sue Oh (even) and Gabriela Ruffels (75) also hoping to make it to the weekend.
Ariya Jutanugarn, coming off a victory two weeks ago in her home LPGA Tour event in Thailand, opened with a 70. She won at Kingsmill in 2016 and 2018.