Lexi Thompson shot a bogey-free 5-under 66 on Saturday to take the lead into the final round of the U.S. Women’s Open for the first time in her career with a one-shot edge over teenager Yuka Saso.

High school junior Megha Ganne shot a 4-under 67 on Thursday to become the first amateur in 15 years to have a share of the lead after any round at the U.S. Women’s Open.