The 17-year-old New Zealander, coming off a victory Sunday in the Women’s Australian Open, broke the Clearwater record of 63 set last year by Mi Hyang Lee in her victory. Ko rebounded from an opening bogey with an eagle on the par-5 second and birdied Nos. 4-7, 9-13 and 18.
She had a 13-under 131 total.
“After the first, I was pretty angry. I got into the rough and it was pretty tough for the pin location. I left it short and that really made me angry as I did that yesterday and was not going to do it again today. The greens were much better today and rolling better and after that eagle I just got myself into the right position.”
The tournament is sanctioned by the European and Australian tours.