(AP) Casie Cathrea beat defending champion Minjee Lee with a par on the 19th hole Thursday to advance to the U.S. Girls' Junior quarterfinals at Sycamore Hills.
Cathrea, the 16-year-old Livermore, Calif., player who was the low amateur in the U.S. Women's Open, won the par-4 18th with a bogey to extend the match, and finished off the 17-year-old Australian on the par-4 first.
Cathrea, a 3-and-1, second-round winner over Jennifer Kupcho of Westminster, Colo., in the morning, will face Bethany Wu of Diamond Bar, Calif., on Friday morning. Wu beat Samantha Wagner of Windermere, Fla., 1 up.
In the other lower-bracket quarterfinal, Lakareber Abe of Angleton, Texas, will meet Kathleen Scavo of Benicia, Calif. Abe beat Lilia Khatu Vu of Fountain Valley, Calif., 2 and 1, and Scavo edged Mai Dechathipat of Oakton, Va., also 2 and 1.
In the upper bracket, Megan Khang of Rockland, Mass., will face Sabrina Bonanno of Norridge, Ill.; and Yueer Feng of Orlando, Fla., will play Gabriella Then of Upland, Calif.
Khang beat Maddie Szeryk of Allen, Texas, 3 and 2; Bonanno topped Mexico's Maria Fassi 5 and 4; Feng beat Australia's Hannah Green 5 and 4; and Then routed Cheyenne Knight of Aledo, Texas, 6 and 4.