Kim set a USGA record by shooting 62 in the second round of stroke play.
Janangelo, who won the Polo Junior Match Play title last November, outlasted Whitney Wade, 15, of Glasgow, Ky., 3-and-2 in the quarterfinals after her win over Kim.
Janangelo meets Whitney Welch, 17, of Las Vegas, Nev., who was a winner in 19 holes over Amber Prange, 16, of Noblesville, Ind., in Fridays first semifinal.
Morgan Pressel, 13, of Boca Raton, Fla., the youngest remaining contestant, defeated Allyson Harvie, 17, of Grass Valley, Calif., 2-and-1 in the quarterfinal round. She plays in the semifinals against Nicole Perrot, 17, of Chile.
Pressel qualified for the 2001 U.S. Womens Open at age 12 and played in the championship at Pine Needles Lodge and Golf Club in June.
Third-seeded Perrot defeated Sukjin Lee, 14, of Toms River, N.J., 4-and-3, in the quarterfinals.
The championship final is set for 9 a.m. CDT Saturday.
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