Canada’s Brooke Henderson nine shots back, tied for 31st.
Mirim Lee equalled the lowest-ever round at the Women’s British Open by shooting a 10-under 62 Thursday to take the lead on the opening day.
The South Korean had 10 birdies as she secured a three-stroke advantage over Ariya Jutanugarn of Thailand, who carded a bogey-free round of 65 on the Marquess Course at Woburn Golf Club.
Canada’s Brooke Henderson was nine shots back, tied for 31st.
Lee matched Minea Blomqvist’s 10-under 62 in the third round of the 2004 British Open at Sunningdale.
“It was probably one of my best ever rounds, although I still had some errant shots,” Lee said. “I played every hole in a similar fashion, hitting fairways and greens. My best ever score was an 11 under par in LPGA qualifying.”
China’s Shanshan Feng completed an all-Asian top three with a 6 under 66.
English star Charley Hull, playing on her home course, birdied two of the last three holes for a share of 11th place after a 3-under 69.
Henderson wasn’t the only star with work to do. Top-ranked Lydia Ko and four-time major winner Laura Davies both carded 74 and may struggle to make the cut.