Eun Jeong Seong of South Korea became the first back-to-back U.S. Girls' Junior champion in 45 years, and Min Woo Lee joined his older sister Minjee Lee as a USGA champion, taking the U.S. Junior Amateur.
Seong rallied to defeat Andrea Lee, 4 and 2, and become the first back-to-back champion since Hollis Stacy won her third straight in 1971.
Lee, 17, beat 16-year-old Noah Goodwin of Corinth, Texas, 2 and 1, becoming the first Australian winner and becoming, with Minjee, the first brother-sister tandem to win USGA junior championships. Minjee Lee won the 2012 U.S. Girls' Junior.
Seong, who was 5 down through 13 holes of the 36-hole match, became the third player to win consecutive titles, joining Stacy and Judy Eller (1957 and 1958).
Lee had to wait out a 47-minute weather delay to hole the winning 3 1/2-foot birdie putt.