South Korean Kim Sei-young took out the JTBC Founders Cup after claiming a dominant five-stroke victory in Phoenix on Sunday.
A flawless final-round 62 saw Kim, who held the overnight lead, to her fourth LPGA Tour victory at 27 under.
Kim went bogey-free in the final round, carding eight birdies as well as an eagle at the par-three 11th hole.
New Zealand's Lydia Ko finished runner-up following her four-under-par 68.
Ko began her day with a bogey but managed to recover with eight birdies, however it was not enough to catch 23-year-old Kim.
American Jacqui Concolino (68) finished in third, seven shots off the pace.
Megan Khang was the biggest of the movers after carding a six under to earn a tie for fourth, alongside Americans Paula Creamer (68) and Stacy Lewis (70), along with Canadian Brooke Henderson (67) and South Korean Ji Eun-hee (71), who were all a stroke further back.
Jang Ha-na (65) finished tied for 13th, while defending champion Kim Hyo-joo (67) was tied for 28th.