- 1940-1946 - No World Championships held due to World War II.
- 1950-1955 Angelica Rozeanu-Adelstein of Romania wins six Women's Singles titles in a row at the World Championships. Since her last title win in 1955, every World Champion in Women's Singles has been an Asian player. Rozeanu-Adelstein also won 3 Women's Doubles titles (1953, 1955-1956) and 3 Mixed Doubles titles (1951-1953).