The 19-year-old Song, the University of Southern California player who won the U.S. Womens Amateur Public Links in June, will face Tiffany Lua of Rowland Heights, Calif., on Saturday at Old Warson. Lua beat Jessica Korda of Bradenton, Fla., 3 and 2.
Pearl Sinn is the only woman to win two USGA titles in a year, taking the 1988 Womens Amateur and Womens Amateur Public Links.
That was obviously in my head, but Im not thinking about that right now, said Song, the low amateur last month in the U.S. Womens Open. Im just trying to play one match at a time and focus on whatever is in front of me.
In the other semifinal, 14-year-old Alexis Thompson of Coral Springs, Fla., will play Jennifer Johnson of La Quinta, Calif. Thompson beat South Koreas Han Jungeun 1-up, and Johnson had a 5-and-4 victory over Candace Schepperle of Birmingham, Ala.
Thompson, the 2008 U.S. Girls Junior champion and sister of PGA Tour player Nicholas Thompson, overcame an early three-hole deficit to advance.
After I got 3-down, I said, `OK, I need to start making some birdies, Thompson said. Shes a great putter and a great player.
Thompson is trying to become the youngest Womens Amateur winner in the championships 109-year history, and also is attempting to become the seventh player to win the Girls Junior and Womens Amateur.
The 18-year-old Lua will be a freshman at UCLA.
Ive known Jessica for a few years now and I know shes a strong player, Lua said. I tried my best to capitalize, and I did. But it is match play and I just hung on there, and I think it happened. I just did my best to hold on.
The 17-year-old Johnson, an incoming freshman at Arizona State, hasnt trailed through 58 holes in four rounds of match play.
Its been nice, getting up early and having the lead, Johnson said. But I dont think this weeks been too easy. Its been pretty mentally exhausting.
The 36-hole final is set for Sunday.