Soon Warszawianka's players achieved many successes, including the championship of Warsaw in 1925 and promotion to the Polish top division in 1927.
After the war, its football team never managed to return to the top league, and was eventually disbanded in 1971.
These included basketball, ice hockey, where the club was runner up in the Polish championship in 1939 and cycling.
Because of war and the destruction of Warsaw, Warszawianka's position as a major Polish sports organization weakened, and in the late 1940s it did not even exist.
At the beginning of the 1950s the club was brought back to life and in 1961 its new sport center was built.