The 1999 US Open was a tennis tournament played on outdoor hard courts at the USTA National Tennis Center in New York City in New York in the United States. It was the 119th edition of the US Open and was held from August 30 through September 12, 1999. US Open 1999: August 30 – September 12, 1999. Men's singles: Andre Agassi — 5th major title. Women's singles: Serena Williams. Wiki link