The 1970 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 was held from September 2 until September 13, 1970. It was the 90th staging of the US Open, and the fourth Grand Slam tennis event of 1970. US Open 1970: September 2–13, 1970 at West Side Tennis Club. Men's singles: Ken Rosewall — 6th major title. Women's singles: Margaret Court — 20th major title. Wiki link