Lake Merced Golf Club, Daly City, California. New Zealander Lydia Ko wins Mediheal Championship. New Zealander Lydia Ko defeats Minjee Lee in playoff. Ko won her 15th LPGAs Tour title. Ko closed with a 1-under 71 to match Lee at 12-under 276. Lydia Ko hit a 3-wood to 3 feet for eagle to finish off Minjee Lee on the first hole. Lydia Ko wins Mediheal Championship in playoff