With support of the Youth Organization of the Association of Workers University (Organizacja Mlodziezy Towarzystwa Uniwersytetu Robotniczego, OM TUR), the new club was managed by Bronislaw Szczoczarz.

In the autumn of 1946, a series of playoffs took place, in order to find best teams for the newly created Rzeszów A-Class.

On 26 June 1955, the first game took place at the newly built PZL Rzeszów stadium, at Hetmanska Street.

By 1949, PZL Rzeszów had six departments: boxing (since 1944), football (since 1945), track and field (since 1945), chess (since 1947), table tennis (since 1948), speedway (since 1949).

In 1956, Stal won regional games of Rzeszów League (III level of Polish football tier), qualifying to the Second Division playoffs, where it faced Piast Gliwice (2–2, 1–0), and Arkonia Szczecin (0–2, 2–0) After the promotion, several players joined Stal for the upcoming 1957/58 season of the Second Division.

Stal was in Group South, among such sides, as Cracovia, Garbarnia Kraków, Wawel Kraków, Piast Gliwice, Concordia Knurow, Bron Radom, Stal Mielec, AKS Chelmek, Naprzod Lipiny, Szombierki Bytom, AKS Chorzów.

Before the 1962 season, PZPN divided the Second Division into two groups: A and B. Stal was in Group A, which consisted of 8 teams (Unia Racibórz, Unia Tarnów, Naprzód Lipiny, Piast Gliwice, MZKS Krosno, Polonia Bydgoszcz, Slavia Ruda Slaska), and won the games, qualifying to the Ekstraklasa.

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

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