Kim shot a 1-under 71 in the final round at Golfzon County Sunsan (par 72) in Gumi, North Gyeongsang Province, with four birdies, one bogey and one double bogey.
She finished at 11-under 277, winning by four strokes over the trio tied for second at 7-under 281: Kim Si-hyeon, Jeon Ye-seong and Ahn Ji-hyeon.
Kim led outright after the first round and again in rounds three and four, and shared the lead after the second round to complete the wire-to-wire win. The tournament purse was 1 billion won, and she earned 180 million won for first place.
Born in 2006, Kim won her first KLPGA title last August at the BC Card-Hankyung Ladies Cup as a sponsor invite. She added a second victory in October at the Dongbu Construction-Korea Land Trust Championship.
Competing this season as a rookie, she secured her third win in six months. The most recent rookie-eligible winner on the KLPGA regular tour before this was Yoo Hyun-jo at the KB Financial Star Championship in September 2024.
Kim entered the week third in rookie-of-the-year points but moved into first with the victory.
“This tournament was a fight against myself,” Kim said in a postround broadcast interview. “I wavered because I made a lot of mistakes, but I think I finished well to the end.”
Ko Ji-won, who won last week’s The Siena Open, tied for sixth at 4-under 284 with Bang Shin-sil, Lee Ye-won, Song Eun-a and Kim Min-seon.
Defending champion Kim Min-ju finished tied for 19th at 1-under 287.
* This article has been translated by AI.
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