The 1910 U.S. National Championships took place on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. 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. US Open 1910: August 15–15, 1910 at Newport Casino (M) Philadelphia Cricket Club (W). Men's singles: William Larned — 6th major title. Women's singles: Hazel Hotchkiss — 2nd major title. Wiki link