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
Innovation district districts intend to replicate the spontaneous growth of the above-mentioned innovation districts, which emerged through market forces, without any formal planning and/or strategy from the city's authority. In contrast with spontaneous innovation districts, 22@ Barcelona and its brainchild innovation districts are led by municipal and/or other public organizations. As a result, while market-led innovation districts are self-sustaining, municipal leadership is needed to pilot the transformation of the public-led innovation district into a self-sustaining innovation district. Much like technology parks, urban and regional policymakers aim with innovation districts to mimic market-led innovation districts in order to create the needed agglomeration economies