1910 U.S. National Championships (tennis)

The 1910 U.S. National Championships (now known as the US Open) took place on the outdoor grass courts at the Newport Casino in Newport, United States. The men's singles tournament ran from August 15 until August 25 while the women's singles and doubles championship took place from June 20 to June 26 at the Philadelphia Cricket Club in Chestnut Hill. It was the 30th staging of the U.S. National Championships, and the third Grand Slam tennis event of the year.

Men's singles
🇺🇸 William Larned (USA) defeated 🇺🇸  Tom Bundy (USA) 6–1, 5–7, 6–0, 6–8, 6–1

Women's singles
🇺🇸 Hazel Hotchkiss (USA) defeated 🇺🇸 Louise Hammond (USA) 6–4, 6–2

Men's doubles
🇺🇸 Fred Alexander (USA) / 🇺🇸 Harold Hackett (USA) defeated 🇺🇸 Tom Bundy (USA) / 🇺🇸 Trowridge Hendrick (USA) 6–1, 8–6, 6–3

Women's doubles
🇺🇸 Hazel Hotchkiss (USA) / 🇺🇸 Edith Rotch  (USA) defeated 🇺🇸 Adelaide Browning (USA) / 🇺🇸 Edna Wildey (USA) 6–4, 6–4

Mixed doubles
🇺🇸 Hazel Hotchkiss (USA) / 🇺🇸 Joseph Carpenter, Jr. (USA) defeated 🇺🇸 Edna Wildey (USA) / 🇺🇸 Herbert M. Tilden (USA) 6–2, 6–2