Katherine Hui, Joao Fonseca win US Open junior singles titles

Katherine Hui made it two big victories for American teenagers at the U.S. Open on Saturday, winning the junior title. Hui, an 18-year-old from San Diego who is entering her freshman year at Stanford, took the court for her final during 19-year-old Coco Gauff's victory over Aryna Sabalenka for the women's title. Hui then beat No. 9 seed Tereza Valentova of the Czech Republic 6-4, 6-4.

US Open 2023: Fonseca and Hui crown themselves in the juniors ·

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ZooTennis: Tien Comes Back, Hui Rolls On to Reach US Open Junior Championships Semifinals; Ram and Salisbury Aim for Third Straight US Open Title; Gauff Advances to Women's Final; Breaking Barriers USTA

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ZooTennis: Cina Beats Top Seed Demin to Reach US Open Junior Quarterfinals; 14-Year-Old Klugman Gets Revenge; Frusina Upsets Blanch; Williams, Tien and Hui Advance; Shelton and Keys Join Gauff in Semifinals

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Katherine Hui and Joao Fonseca win US Open junior singles titles 2023