South Korea's A Lim Kim fired a four-under-par 68 to win the Lotte Championship in Ewa Beach, Hawaii.
Kim entered the fourth and final round of the tournament with a one-stroke lead and saw off Nataliya Guseva of Russia by two shots.
Guseva cardeda 69 on Saturday to come up just short of Kim's 18-under total at Hoakalei Country Club.
It marks the second career LPGA Tour title for Kim, who racked up 25 birdies to go along with an ace at the tournament. Kim also won the US Women's Open in 2020.
"I think Hawaii is more good for me, more comfortable, and then when I ...came on site, everything is new and then grass and read is very hard for me," Kim said. "But getting better from now, more easier."
Bogeys at the par-four second and par-three ninth ended up costing Guseva. She did have five birdies, including a pair at 11 and 13, but she was unable to become the first Russian golfer to win on the LPGA Tour.
"Obviously congrats to A Lim for a great game. I really did my best out there. I never gave up. Every hole I gave just my 100% and more than that," Guseva said.
"I enjoyed it out there. I enjoy playing golf. I enjoy the crowds."
Auston Kim birdied four of her first six holes before slowing down, as she recorded just one more birdie the rest of the way during a bogey-free round. She shared low-round honours with Japan's Nasa Hataoka, who also posted a 67.
Auston Kim landed in third, three strokes behind A Lim Kim, while Hataoka came in fourth, four shots off the lead.
Ryann O'Toole's 70 and a 69 for Yuri Yoshida of Japan saw them tie for fifth.
