In 1909 former cavalry captain Mr. Delić came to Kraljevo from Šibenik and brought the first ball which he bought in Zemun.

The club's first games were played in Divlje Polje, the playground was across the street of an old train station.

After the war ended a group of sport enthusiasts in April 1945 founded a football club by the name of Sloboda.

The staff was composed of Mile Pribaković, Desanka Vitorović, Stanko Lekić, Milja Tanasijević, Ratko Stojić, Nikola Naumović, Mijo Kostić, Hrane Strijelić and others.

The games were played in the town centre, at the place where today lies a swimming pool.

The first game played by Sloboda was against Streljački bataljon (Firing squad) which was based in Kraljevo.

The biggest success in the history of Sloga was in the 1969/70 season when competing in the Second League they finished in first place in front of their eternal rival Borac Čačak.

The capacity of the stadium is around 4.000, but the biggest attendance was close to 8000 people, at the qualifying game versus FK Crvenka for the Yugoslav First League in 1970.

[1] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.