Lydia Ko birdied four of her final five holes for a 65 to take a one-shot lead at 21-under over Nelly Korda after the third round of the LPGA Lotte Championship in Hawaii on Friday. Ko, a former world-number-one, is looking to break a three-year LPGA Tour winless streak heading into Saturday's final round at Kapolei Golf Club. Overnight leader Yuka Saso dropped to third, four shots back at 17-under after a 71.