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 Grand Prix (tennis) promoter and winner of the Wimbledon and US championships, and was aimed at countering the influence of commercial promoters, particularly Lamar Hunt and his World Championship Tennis circuit and George MacCall's National Tennis League. The tournaments were graded in one of three categories which determined the number of ranking points available: Class A, comprising the three Grand Slam tournaments, Class 1 and Class 2. The Pepsi-Cola Masters and Davis Cup Final are included in this calendar but did not count towards the Grand Prix. In addition to the tournament prize money a bonus pool of $150,000 was available for the