U.S. Women’s Open: Find out what putting change led Mina Harigae to nine birdies and an opening 64

SOUTHERN PINES, N.C. – Mina Harigae hasn’t felt confident on the greens all year.

Until today.

The 32-year-old carded nine birdies in a sizzling 7-under 64 to take the first-round lead at the 77^th U.S. Women’s Open. Her effort ties the second-lowest round in championship history. It also marks her first round in the 60s in 36 previous career rounds at the Women’s Open.