The 1971 US Open was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club in Forest Hills, Queens, in New York City, New York. The tournament ran from 1 September until 12 September. It was the 91st staging of the US Open, and the fourth Grand Slam tennis event of 1971. US Open 1971: September 1–12, 1971 at West Side Tennis Club. Men's singles: Stan Smith. Women's singles: Billie Jean King — 6th major title. Wiki link