Lizette Salas set the tone in the first round of the Women's PGA Championship, posting a five-under-under-67 for the lead.
Salas earned a one-stroke lead after missing only two fairways on the Highlands Course at Atlanta Athletic Club in Georgia on Thursday.
In a flawless round, Salas – without a LPGA Tour title since 2014 and seeking a maiden major trophy – holed five birdies to end the day ahead of Charley Hull.
"It was definitely not easy," the 31-year-old American said about the conditions. "We started with pretty wet conditions this morning, but the greens are rolling extremely pure.
"I had a really good warm-up. I was really confident coming into this week, and I think my game really suits this golf course and kept it boring."
Jeongeun Lee6, Austin Ernst, Jessica Korda, Alena Sharp, Xiyu Lin, Yealimi Noh and Dani Holmqvist are two shots off the pace.
Three-time PGA Championship winner Inbee Park shot a 71 to be tied for 23rd, while defending champion Kim Sei-young endured a forgettable four-over-par 76.