Polonia Środa

Polonia Środa Wielkopolska is a sports club founded on 1 October 1919. The first president was Adam Pankowski. In the second half of 1923, the club was caught up in financial trouble and in an attempt to rescue the club, chairman Tadeusz Mikolajczak changed the name from Polonia to Tabromik. The entity survived until 1930. On 28 November 1926, a group of former activists of the club convened a meeting to revive the club. President of the new entity was Stefan Kujawski, and the name was changed to Pogoń Środa Wielkopolska.

With the advent of World War II, the club suspended all activities. On 14 April 1945, a meeting was held which established the średzki Sports Club and on 9 June the name of Polonia was restored. In the 1950s, the club was renamed - initially it was named Unia and later Kolejarz Środa Wielkopolska. In 1957, the name was changed back to Polonia.

In the 1989–1990 season, players advanced to the regional league, and two years later to the macroregional league. As a result of a merger with Kotwica Kórnik, Polonia began playing in the third tier, operating under the name Kotwica-Polonia, with their stay there lasting four years. In 2011, the club earned promotion to the III liga.