9 Interesting Facts about the US Open.

August 1881 saw the inaugural US Open take place in Newport, Rhode Island.

The USTA Billie Jean King National Tennis Center's main stadium was renamed in honor of Arthur Ashe, who won the first U.S. Open as an amateur.

The U.S. Open was first held in a garden belonging to one of the organizers on a grass court.

In 2001, Venus and Serena Williams made history by becoming the first sisters to face off in an American Nationals/Open match.

Pete Sampras is the youngest Men's Singles winner, having won in 1990 at the age of 19.

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The youngest Men's Doubles champion is Vincent Richards, who took home the title in 1918 at the age of just 15.

The U.S. Open was the first Grand Slam tournament to feature night matches in 1975.

The Honey Deuce, a cool concoction of Grey Goose Vodka, lemonade, Chambord, crushed ice, and a frozen honeydew melon ball garnish, is the official drink of the US Open.

Equal prize money is awarded to men and women; this custom dates back to 1973, when Billie Jean King threatened to boycott.