The U.S. Open is one of the four major championships in professional tennis, held annually in the United States. It takes place over two weeks in late August and early September at the USTA Billie Jean King National Tennis Center in New York City. The tournament features men's and women's singles, doubles, and mixed doubles events, attracting top players from around the world. Established in 1881, the U.S. Open is known for its hard court surface, which can influence the style of play. It is the final Grand Slam event of the year, often showcasing thrilling matches and dramatic moments in the sport.