Who did Hrunčáková lose to in the 2016 US Open girls' singles final?
Kayla Day
Sofia Kenin
Clara Tauson
Emma Raducanu
Answer
Kayla Day defeated Hrunčáková in the 2016 US Open girls' singles final. Day, an American, won in straight sets, 6-3, 6-2. It was Day's first Grand Slam junior title, and she became the first American girl to win the US Open girls' singles title since 2005.
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