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
1970 Grand Prix (tennis) and number of singles titles won (Grand Slams and Masters in bold text), alphabetically by last name: The list of winners and number of doubles titles won (Grand Slams and Masters in bold text), last name alphabetically: The list of winners and number of mixed doubles titles won (Grand Slams and Masters in bold text), alphabetically by last name: The following players won their first singles title in 1970: 1970 Grand Prix (tennis) The 1970 Pepsi-Cola ILTF Grand Prix was a tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association