1978 US Open (tennis) Per Hjertquist defeated Stefan Simonsson, 7-6, 1-6, 7-6 Linda Siegel defeated Ivanna Madruga, 6–4, 6-4 1978 US Open (tennis) The 1978 US Open was a tennis tournament played on outdoor hard courts at the USTA National Tennis Center in New York City in New York in the United States. It was the 98th edition of the US Open and the fourth Grand Slam tennis event of the year. The tournament was held from August 28 to September 10, 1978, and the singles titles were won by Jimmy Connors and Chris Evert. This was the first year the US Open was
US Open (tennis) the 1968 national tournament were open to professionals. That year, 96 men and 63 women entered, and prize money totaled US$100,000. In 1970, the US Open became the first Grand Slam tournament to use a tiebreaker to decide a set that reached a 6–6 score in games. From 1970 through 1974, the US Open used a best-of-nine-point sudden-death tiebreaker before moving to the International Tennis Federation's (ITF) best-of-twelve points system. In 1973, the US Open became the first Grand Slam tournament to award equal prize money to men and women, with that year's singles champions,John Newcombe and Margaret Court, receiving