The 1931 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States.
In 1931, the first U.S. National Championships, now referred to as the US Open, was held on the lush green lawns of the West Side Tennis Club's outdoor courts in Forest Hills, Queens, New York City.