"I've been in the snow for a while, but I felt pretty good coming into this week," said Tschetter, a four-time LPGA Tour winner who lives in Warrenton, Virginia. "I just tried to swing smoothly and not let any errant shots rattle me."
The 50-year-old Tschetter birdied the final hole of regulation for a 4-under 68, while Inkster closed with a bogey for a 69. They finished at 6-under 138 at Grandview Golf Course.
Tschetter earned $30,000.
First-round leader Martha Nause followed her opening 67 with a 74 to tie for fifth at 3 under.
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