The 21-year-old tour rookie could not quite match her final group partner A Lim Kim as the South Korean posted a four-under 68 to win the Lotte Championship by two shots in Hawaii on Saturday.
Guseva parred the final five holes in a 69 as she finished runner up, having previously tied for second at the Portland Classic in August.
Kim, who won the US Women's Open in December 2020, ended a six-hole par streak with a birdie on the par-5 18th and finished at 18 under 270 at breezy Hoakalei Country Club.
A Lim Kim claimed her second LPGA Tour title. (AP PHOTO)
The 29-year-old South Korean jumped from 65th to 22nd in the Race to CME Globe standings to secure a spot in the 60-player season finale that pays $US4 million to the winner.
American Auston Kim was third at 15 under after a 67, with Japan's Nasa Hataoka (67) another stroke back.
Australia's Grace Kim tied for 11th place at nine under after a closing 71, with countrywomen Robyn Choi (72) tied 35th and Steph Kyriacou (73) tied 43rd.
Angela Stanford closed with a 71 to tie for 26th at five under in what could be her final LPGA Tour event. The 46-year-old Texan has seven tour victories.
"I really didn't get emotional until I was looking at my scorecard," Stanford said. "I said going into today I wanted to be me, I wanted to play my game. I hit every green on the back nine. Throughout my career my iron play was what I relied on, so that kind of made me get teary-eyed."
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