1970 US Open (tennis) 1970 US Open (tennis) The 1970 US Open was a tennis tournament that took place on the outdoor grass courts at the Forest Hills, Queens in New York, United States. The tournament ran from 2 September until 13 September. It was the 90th staging of the US Open, and the fourth Grand Slam tennis event of 1970. It was the first Grand Slam tournament in which the tiebreak was used to decide the set at a 6-6 score. It differed from the current tie-break scoring in that it was won by the first player to reach five points with a
1970 South African Open (tennis) 6–1, 6–2 Margaret Court defeated Billie Jean King 6–4, 1–6, 6–3 Bob Hewitt / Frew McMillan defeated Cliff Drysdale / Roger Taylor 6–3, 6–3, 6–2 Billie Jean King / Rosie Casals defeated Kerry Mellville / Karen Krantzcke 6–2, 6–2 Margaret Court / Marty Riessen defeated Pat Walkden / Frew McMillan 7–5, 3–6, 7–5 1970 South African Open (tennis) The 1970 South African Open was a combined men's and women's tennis tournament played on outdoor hard courts at Ellis Park in Johannesburg, South Africa. It was an independent tournament that was not part of either of the two main tennis circuits;