1958 U.S. National Championships (tennis)

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.

1958 U.S. National Championships
Date	29 August – 7 September
Edition	78th
Category	Grand Slam (ILTF)
Surface	Grass
Location	Forest Hills, Queens New York City, New York
Venue	West Side Tennis Club
Champions
Men's singles
Ashley Cooper[1]
Women's singles
Althea Gibson
Men's doubles
Alex Olmedo / Ham Richardson
Women's doubles
Jeanne Arth / Darlene Hard
Mixed doubles
Margaret Osborne / Neale Fraser

Finals

Men's singles

Main article: 1958 U.S. National Championships – Men's singles

Ashley Cooper defeated Malcolm Anderson 6–2, 3–6, 4–6, 10–8, 8–6

Women's singles

Main article: 1958 U.S. National Championships – Women's singles

Althea Gibson defeated Darlene Hard 3–6, 6–1, 6–2

Men's doubles

Alex Olmedo (USA) / Ham Richardson (USA) defeated Sam Giammalva (USA) / Barry MacKay (tennis) (USA) 3–6, 6–3, 6–4, 6–4 ^[2]

Women's doubles

Jeanne Arth (USA) / Darlene Hard (USA) defeated Althea Gibson (USA) / Maria Bueno (BRA) 2–6, 6–3, 6–4 ^[3]

Mixed doubles

Margaret Osborne (USA) / Neale Fraser (AUS) defeated Maria Bueno (BRA) / Alex Olmedo (USA) 6–4, 3–6, 9–7 ^[4]