<Tr> <Td_colspan="2"> 2017 US Open </Td> </Tr> <P> The United States Open Tennis Championships is a hard court tennis tournament . The tournament is the modern version of one of the oldest tennis championships in the world, the U.S. National Championship, for which men's singles was first contested in 1881 . Since 1987, the US Open has been chronologically the fourth and final tennis major comprising the Grand Slam each year; the other three, in chronological order, are the Australian Open, the French Open and Wimbledon . </P> <P> The US Open is held annually, starting on the last Monday in August, and lasting for two weeks into September, with the middle weekend coinciding with the Labor Day holiday . The main tournament consists of five event championships: men's and women's singles, men's and women's doubles, and mixed doubles, with additional tournaments for senior, junior, and wheelchair players . Since 1978, the tournament has been played on acrylic hard courts at the USTA Billie Jean King National Tennis Center in Flushing Meadows--Corona Park, Queens, New York City . The US Open is owned and organized by the United States Tennis Association (USTA), a not - for - profit organization . Net proceeds from ticket sales, sponsorships, and television deals are used to promote the development of tennis in the United States . </P> <P> The US Open is the only Grand Slam that employs tiebreakers in every set of a match . For the other three Grand Slam events, if a match goes to the last possible set (the third for women, fifth for men) and there is a 6--6 tie, the match continues until one player wins by two games, but the sets played before the last set always employ tiebreakers should a set reach 6--6 . </P>

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