WONJU, South Korea -- Lydia Ko won her 18th career title in the country of her birth after completing a 7-under 65 final round at the BMW Ladies Championship on Sunday.
Ko finished the South Korea-based tournament with a 21-under 267, 4 strokes ahead of Andrea Lee, who had a final round of 3 under 69.
"This is probably the best I've played, the most consistently I've played," Ko said.
"I played the back nine really well in all four of my rounds, and I think that was the big key for me."
Ko slipped to 15 under when she had a bogey at the No. 7 before firing in six birdies to leave the rest of the pack behind.
"Every time I come back to Korea, even though I play under the New Zealand flag, so many people support me ... I think that is such a boost," Ko said.
There was a three-way tie for third place with Hye-Jin Choi, Hyo Joo Kim and Lilia Vu all ending up at 16-under 272.
Atthaya Thitikul, who carded a tournament record 9-under 63 on the first day, ended up fourth following a disappointing round of 2 over 74 on Sunday with five bogeys and only three birdies.