Bristow, who turned professional last year after graduating from the University of Oregon with a degree in psychology, pocketed close to $US20,000 for her maiden win on the professional circuit.
The Futures Tour is a feeder circuit for the LPGA Tour, on which Bristow made a handful of starts last season when she became only the third New Zealand female to make an LPGA appearance, after Marilyn Smith and Marnie McGuire.
The New Zealander's success is comfortably her best result on the Futures Tour, with her previous best being a 16th placing at the Island Resort Championship in Michigan in June.
She has now made seven of 13 cuts this season, with tournament earnings of nearly $US25,000.
Today's cheque also propelled her up the tour's moneylist, from 88th to inside the top 20. The leading 10 at season's end earn promotion to the LPGA Tour.
The next Futures Tour event is the Eagle Classic at Richmond, Virginia, starting on Saturday (NZT).
- NZPA