Sei Young Kim equaled Annika Sorenstam's LPGA Tour scoring record of 27-under in her five-shot win at the JTBC Founders Cup.
Kim fired a 10-under-par 62 in Sunday's final round to match the tournament record set by Mi Hyang Lee in the first round on Thursday.
World number one Lydia Ko finished in second place on 22-under, while Jacqui Concolino was in third on 20-under.
Canada's teenage sensation Brooke Henderson was in a tie for fourth on 19-under with Paula Cremer, Stacy Lewis, Eun-Hee Ji and Megan Khang.
Kim started her bogey-free round with five birdies on the front nine, three of which came in a row from the fourth to sixth. The 2015 LPGA Tour Rookie of the Year maintained her red-hot form on the back nine.
At the par-five 11th, Kim racked up an eagle after hitting a 5-wood from 241 yards to within 3 feet of the hole. She then proceeded to make three more birdies to claim her fourth LPGA Tour title, adding to the titles she won in the Bahamas, Hawaii and Hainan Island last year.
Ko climbed up three places on the leaderboard following her final round 65. The New Zealander began with a bogey at the first before she found her groove and recorded four birdies to take the turn in 33. The world number one continued to impress on the back nine as she made four consecutive birdies from the 13th to 16th.
Concolino meanwhile carded a four-under-par 68 and continued her consistent performance as she made six birdies and two bogeys during her final round.
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