1970 US Open (tennis) sudden death at 4-4. A red flag would be put up by the umpire’s seat to draw fan attention to the tiebreaker in progress. Most players disapproved of the tiebreaker but the visitors loved it. Ken Rosewall def. Tony Roche, 2–6, 6–4, 7–6, 6–3 Margaret Court defeated Rosemary Casals, 6–2, 2–6, 6–1 Pierre Barthès / Nikola Pilić defeated Roy Emerson / Rod Laver, 6–3, 7–6, 4–6, 7–6 Margaret Court / Judy Tegart Dalton defeated Rosemary Casals / Virginia Wade, 6–3, 6–4 Margaret Court / Marty Riessen defeated Judy Tegart Dalton / Frew McMillan, 6–4, 6–4 1970 US Open (tennis) The
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;