Men's team of Unia Racibórz won in 1957 regional competition of Opole Silesia, and qualified for the Second Division playoffs.

After beating Victoria Częstochowa, Wawel Wirek and Lublinianka, Unia won promotion to the 1958 Second Division, which at that time was the second level of Polish football system, consisting of 24 teams, divided into two groups, North and South.

In its first Second Division season, Unia was 4th in Group South, behind Górnik Radlin, Szombierki Bytom and Stal Mielec.

Based on this very talented generation of young players, in 1959 Unia was very close to the promotion to the Ekstraklasa, finishing the season in the 2nd spot of Group South of the Second Division, one point behind Zagłębie Sosnowiec.

In 1960, Unia was moved to Group North of the Second Division, finishing the season in the third spot, behind Lech Poznań and Zawisza Bydgoszcz.

The men's team of Unia Racibórz currently plays in the Silesia II group of the regional league, the sixth level of the Polish association football system.