Hence, should the tiebreaker be even at 9-all, whoever scores two straight points wins the match and/or championship. Thus, when a match reaches 6–all in the last possible set (the third for women and fifth for men), an extended tiebreaker (first to 10 points, win by 2) is played.

Since 2022, new tiebreak rules were initiated and standardised in the final set for all four Grand Slams. This tournament, from 1971 to 2021, employed standard tiebreakers (first to 7 points, win by 2) in every set of a singles match. Revenue from ticket sales, sponsorships, and television contracts is used to develop tennis in the United States. The US Open is owned and organized by the United States Tennis Association (USTA), a non-profit organization, and the chairperson of the US Open is Patrick Galbraith. Since 1978, the tournament has been played on acrylic hardcourts at the USTA Billie Jean King National Tennis Center in Flushing Meadows–Corona Park, Queens, New York City. The tournament also includes events for senior, junior, and wheelchair players. The tournament consists of five primary championships: men's and women's singles, men's and women's doubles, and mixed doubles. It is the only Grand Slam that was not affected by cancellation of World War I and World War II or interrupted by the COVID-19 pandemic in 2020. National Championship, for which men's singles and men's doubles were first played in August 1881. The tournament is of one of the oldest tennis championships in the world, originally known as the U.S. The US Open starts on the last Monday of August and continues for two weeks, with the middle weekend coinciding with the US Labor Day holiday. The other three, in chronological order, are the Australian Open, French Open and Wimbledon. Since 1987, the US Open has been chronologically the fourth and final Grand Slam tournament of the year. The US Open Tennis Championships is a hardcourt tennis tournament held annually in Queens, New York. USTA Billie Jean King National Tennis Center (since 1978)

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