South Korea's Eun Jeong Seong and Italy's Virginia Elena Carta each won two matches Thursday in the U.S. Women's Amateur to keep alive their bids for rare season sweeps.

The 16-year-old Seong is trying to become the first player to win the event and U.S. Girls' Junior in the same season, and the 19-year-old Carta is attempting to become the second player to win the tournament and NCAA individual title in the same year.

Seong beat Thailand's Chakansim (Fai) Khamborn 5 and 4 in the morning in the round of 32 at Rolling Green, and topped fellow South Korean player Hye-Jin Choi 6 and 5 in the afternoon round of 16.

Seong will face 17-year-old Andrea Lee of Hermosa Beach, California, in a rematch of her victory last month in the U.S. Girls' Junior final at Ridgewood in Paramus, New Jersey. Lee beat Robynn Ree of Redondo Beach, California, 6 and 4 in the round of 16.

In the other lower-bracket quarterfinal, Australia's Hannah Green will play France's Mathilda Cappeliez. Green beat France's Celine Boutier 4 and 3, and Cappeliez topped Thailand's Paphangkorn Tavatanakit 1 up.

In the upper bracket, Carta, the Italian player who won the NCAA individual title as a Duke freshman in May, will face Puerto Rico's Maria Torres, and Japan's 17-year-old Nasa Hataoka will play 15-year-old Yuka Saso of the Philippines.

Carta beat Jessica Porvasnik of Hinckley, Ohio, 3 and 2; Torres, a senior at Florida, edged Dylan Kim of Plano, Texas, 5 and 4; Hataoka topped Katelyn Dambaugh of Goose Creek, South Carolina, 2 and 1; and Saso beat Hailee Cooper of Montgomery, Texas, also 2 and 1.