From 1921 through 1923, the men's singles tournament was played at the Germantown Cricket Club in Philadelphia, Pennsylvania.[19] It returned to the West Side Tennis Club in 1924 following completion of the 14,000-seat Forest Hills Stadium.[6] Although many already regarded it as a major championship, the International Lawn Tennis Federation officially designated it as one of the world's major tournaments commencing in 1924.[20] At the 1922 U.S. National Championships, the draw seeded players for the first time to prevent the leading players from playing each other in the early rounds.[21][22] From 1935 to 1941 and from 1946 to 1967, the men's and women's doubles were held at the Longwood Cricket Club.[23]