She finished at 4-under-par 212 for her first win on the circuit at Geneva National Golf Club.
Amateur Esther Choe shot an even-par 72 and tied for second place with Brandi Jackson, who managed a 2-under 70 on Sunday. The pair came in at 3-under-par 213.
Overnight leader Caroline Larsson struggled to a 4-over 76 and shared fourth place with Jane Park, who shot a 1-over 73 in the final round. The duo finished at minus-2.
Stephanie George carded a 2-under 70 and came in sixth place at minus-1.
Allison Fouch (72), Eunjung Yi (71) and Christina Baena (70) shared seventh place at even-par 216.