1921 U.S. National Championships (tennis)
The 1921 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the Germantown Cricket Club in Philadelphia, United States. The women's tournament was held from 15 August until 20 August while the men's tournament ran from 9 September until 19 September. It was the 41st staging of the U.S. National Championships and the second Grand Slam tennis event of the year.Finals
defeated Wallace F. Johnson 6–1, 6–3, 6–1Women's Singles
defeated Mary Browne 4–6, 6–4, 6–2Men's Doubles
/ Vincent Richards defeated Richard Norris Williams / Watson Washburn 13–11, 12–10, 6–1Women's Doubles
/ Louise Riddell Williams defeated Helen Gilleaudeau / Aletta Bailey Morris 6–3, 6–2Mixed Doubles
/ Bill Johnston defeated Molla Bjurstedt Mallory / Bill Tilden 3–6, 6–4, 6–3
