The 2014 US Open was a tennis tournament played on outdoor hard courts. It was the 134th 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. US Open 2014: August 25 – September 8, 2014 at USTA Billie Jean King National Tennis Center. Men's singles: Marin Čilić. Women's singles: Serena Williams — 18th major title. Wiki link