2009 US Open (tennis) 2009 US Open (tennis) The 2009 US Open was a tennis tournament played on outdoor hard courts, held from August 31 to September 14, 2009 in the USTA Billie Jean King National Tennis Center at Flushing Meadows, New York City, United States. Originally, it was scheduled to end with the men's singles final match on Sunday, September 13, but due to rain the tournament was extended by one day. Like the Australian Open, the tournament featured night matches. Former World No. 1 and 2005 US Open women's singles champion, Kim Clijsters, competed in the 2009 US Open after being granted
2015 US Open (tennis) 2015 US Open (tennis) The 2015 US Open was a tennis tournament played on outdoor hard courts. It was the 135th edition of the US Open, the fourth and final Grand Slam event of the year. It took place at the USTA Billie Jean King National Tennis Center. Marin Čilić was the defending champion in the men's singles event, but lost to eventual champion Novak Djokovic in the semifinals. Serena Williams was the three-time defending champion in the women's singles event and was also trying to complete the calendar Grand Slam, but she lost to Roberta Vinci in the semifinals.