Campeonato Paulista
In 1964, the club affiliated to FPF, became a professional club and competed in the Campeonato Paulista. In 1966, União Barbarense was promoted to Campeonato Paulista Second Division. In 1967, the club was promoted to Campeonato Paulista First Division, just one division below the Special Division. In 1968, União Barbarense competed in the Campeonato Paulista First Division.