Great scoring conditions arose Thursday at Wildfire Golf Club in Phoenix, Ariz., and players took advantage.
There were 10 rounds of 65 or better during the first round of the Bank of Hope Founders Cup, a scoring barrage that meant a crowded leaderboard.
Five players are tied for the lead through 18 holes, with Ariya Jutanugarn and Stacy Lewis the most notable among the leading front at 8 under.
In Gee Chun, Katie Burnett and Sandra Changkija also posted 64 to share the lead.
The resurgence of Michelle Wie continues, as she posted a 7-under 65 to open the proceedings in Phoenix. Vicky Hurst, Jane Park, Sherman Santiwiwatthanaphong and 56-year-old Juli Inkster, the upcoming U.S. Solheim Cup captain, also came in at 7 under.
Lydia Ko is tied for 32nd after opening in 4-under 68.