Lydia Ko takes lead after 3rd round of US Women's Open (The Associated Press)

Amy Yang, of South Korea, waves after making a birdie putt on the sixth green during the third round …

Lydia Ko, of New Zealand, reacts after making a birdie putt on the 18th green during the third round …

Eun Hee Ji, of South Korea, putts on the second green during the third round of the U.S. Women's …

Lydia Ko, of New Zealand, follows her shot from the sixth tee during the third round of the U.