The 1889 U.S. National Championships (now known as the US Open) was a tennis tournament that took place in June, August, and September of 1889.
The women's tournament was held from June 11 to June 15 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. The men's tournament was held from August 27 to September 3 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The men's doubles event was played at the Staten Island Cricket Club in Livingston, Staten Island, New York. It was the 9th U.S. National Championships and the second Grand Slam tournament of the year.
This was the first edition of a doubles championship for women, with the event being held at the Philadelphia Cricket Club: Margarette Ballard and Bertha Townsend were the first women's doubles champions.
Henry Slocum defeated Quincy Shaw 6âÂÂ3, 6âÂÂ1, 4âÂÂ6, 6âÂÂ2
Bertha Townsend defeated Lida Voorhees 7âÂÂ5, 6âÂÂ2
Henry Slocum / Howard Taylor defeated Valentine Hall / Oliver Campbell 6âÂÂ1, 6âÂÂ3, 6âÂÂ2
Margarette Ballard / Bertha Townsend defeated Marion Wright / Laura Knight 6âÂÂ0, 6âÂÂ2