World number one-ranked junior Taylor Fritz defeated countryman and number five-ranked Tommy Paul, 6-2, 6-7 (4), 6-2 to claim the US Open boys' singles title.
Following the victory on Sunday, the 17-year-old Fritz joins Paul, who beat Fritz in the French Open boys' final in June, and Reilly Opelka (Wimbledon) as Americans to win Grand Slam boys' singles titles this year, Xinhua reported.
In the girls' singles final, American Sofia Kenin fell to No. 2 seed Dalma Galfi of Hungary, 7-5, 6-4.
In the boys' doubles final, the American team of Brandon Holt and Riley Smith lost to the Canadian pair of Felix Auger-Aliassime and Denis Shapovalov, 7-5, 7-6 (3).
