Two weeks ago in the Women’s Open at Olympic Club in San Francisco, Hataoka lost to Yuka Saso on the third playoff hole.
“It reminds me a lot of home, a lot of golf courses that I would’ve grew up playing at home,” Maguire said.
Ariya Jutanugarn and Min Lee shot 66.
Lexi Thompson, the 2015 winner, was in the large group at 68 that included Inbee Park, sisters Nelly and Jessica Korda and Jennifer Kupcho.
Brooke Henderson, the winner in 2017 and 2019 in the event that was canceled last year, opened with a 75.