The 1958 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, New York. The tournament ran from 29 August until 7 September. It was the 78th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
Ashley Cooper defeated Malcolm Anderson 6âÂÂ2, 3âÂÂ6, 4âÂÂ6, 10âÂÂ8, 8âÂÂ6
Althea Gibson defeated Darlene Hard 3âÂÂ6, 6âÂÂ1, 6âÂÂ2
Alex Olmedo (USA) / Ham Richardson (USA) defeated Sam Giammalva (USA) / Barry MacKay (tennis) (USA) 3âÂÂ6, 6âÂÂ3, 6âÂÂ4, 6âÂÂ4
Jeanne Arth (USA) / Darlene Hard (USA) defeated Althea Gibson (USA) / Maria Bueno (BRA) 2âÂÂ6, 6âÂÂ3, 6âÂÂ4
Margaret Osborne (USA) / Neale Fraser (AUS) defeated Maria Bueno (BRA) / Alex Olmedo (USA) 6âÂÂ4, 3âÂÂ6, 9âÂÂ7