Megan McChrystal struggled to a two-over 74 on Sunday, but it was enough for her to win the Florida's Natural Charity Classic.
McChrystal, who won for the first time on the Symetra Tour, finished at five- under-par 211 at Lake Region Yacht and Country Club.
The 23-year-old tripped to a double-bogey at the second. She came back with a birdie on the third, then parred her next 10 holes.
McChystal stumbled to bogeys at 14 and 16, but got one stroke back with a birdie at 17. She parred the last to seal the win.
Sara Maude Juneau carded a two-under 70 to join Nicole Smith (72) in second place at minus-four.
Mi Hyang Lee (70), Tzu-Chi Lin (71), Birdie Kim (73), Cara Freeman (74) and Seul-Ki Park (75) shared fourth place at three-under-par 213.