September 10, 2017
16-year-old Amanda Anisimova triumphed in the girls' singles final at the US Open, beating 13-year-old fellow American Cori Gauff in straight sets.
Marta Kostyuk
No.11 seed Marta Kostyuk recovered from a set down to defeat top seed and reigning French Open champion Rebeka Masarova to win the Australian Open junior title.