The 1945 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 tournament ran from August 28 until September 3. It was the 65th staging of the U.S. National Championships, and due to World War II it was the only Grand Slam tennis event of the year. US Open 1945: August 28 – September 3, 1945 at West Side Tennis Club. Men's singles: Frank Parker — 2nd major title. Women's singles: Sarah Palfrey Cooke — 2nd major title. Wiki link