Defending champion Kirk wasted no time in picking up from where she left off last year, when she snapped a seven-year, 152-tournament victory drought in the inaugural edition of the Classic. Starting on the back nine, Kirk opened with three consecutive birdies and ended her day with a perfect wedge into the par-5 ninth for a tap-in birdie. Kirk needed to keep her foot on the gas because 21 players shot 6-under or better. Sei Young Kim was a stroke behind at 63, and Brittany Marchand and Megan Khang were tied at 64.