US Open: It’s time for tennis ... and a test

New York City hosts the annual Grand Slam tennis event, a last shot for professionals from around the world to make their mark. Check your knowledge of the US Open by taking this quiz.

9. What scoring twist sets the US Open apart from the other Grand Slam tournaments?

Peter Morgan/AP
Quadrillad Middleton cleans around the seats at Arthur Ashe Stadium in New York, Sunday, Aug. 28, 2010, the day before the start of the US Open tennis tournament.

It is the only one that uses tiebreakers in every set.

It is the only one that uses no-ad scoring.

It is the only one that requires a two-game lead to secure the fifth and final set.

It is the only one to use 1-2-3-4 scoring rather than the traditional 15-30-40-ad scoring.

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