1970 US Open (tennis) 1970 US Open (tennis) The 1970 US Open was a tennis tournament that took place on the outdoor grass courts at the Forest Hills, Queens in New York, United States. The tournament ran from 2 September until 13 September. It was the 90th staging of the US Open, and the fourth Grand Slam tennis event of 1970. It was the first Grand Slam tournament in which the tiebreak was used to decide the set at a 6-6 score. It differed from the current tie-break scoring in that it was won by the first player to reach five points with a
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