She finished the event at 12-under-par 204 and won by eight shots over Kristina Tucker at Hunters Oak Golf Club. Tucker also managed a 2-under 70 on Sunday.
This was Fankhauser's second win on the Duramed Futures Tour after winning last year's Team WLF.orh Golf Classic. Fankhauser, who had seven top 10s this year, pocketed $10,500 for the win.
Janell Howland (72), Liz Janangelo (73) and Violeta Retamoza (74) shared third place at minus-2.
Becky Lucidi (69), Seo-Jae Lee (71), Hwanhee Lee (71), Yoora Kim (74), Esther Choe (74) and Annie Young (76) tied for sixth place at 1-under-par 215.