The 2005 US Open was the fourth and final Grand Slam of 2005. It was held between August 29, 2005, and September 11, 2005. US Open 2005: August 29 – September 11, 2005 at USTA Billie Jean King National Tennis Center. Men's singles: Roger Federer — 6th major title. Women's singles: Kim Clijsters. Wiki link