The 1918 U.S. National Championships 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 women's tournament was held from June 17 until June 22 while the men's tournament ran from August 26 until September 3. It was the 38th staging of the U.S. National Championships and due to World War I the only Grand Slam tennis event of the year. US Open 1918: August 26–26, 1918 at West Side Tennis Club (M) Philadelphia Cricket Club (W). Men's singles: Robert Lindley Murray — 2nd major title. Women's singles: Molla Bjurstedt — 4th major title. Wiki link