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
Pennsylvania Lawn Tennis Championships Pennsylvania Lawn Tennis Championships The Pennsylvania Lawn Tennis Championships was a tennis tournament played at the Merion Cricket Club in Haverford, Pennsylvania. The first edition was held in 1894. It was part of the Eastern Grass Court Circuit, a series of grass court tournaments on the American Eastern Seaboard in the lead up to the U.S. Championships which also included South Orange, Meadow Club, Newport Casino and Longwood. The event was part of the Grand Prix tennis circuit from 1970-1974, before which it was an amateur event. It was held on outdoor hard courts from 1970–72 and grass courts from