Alter impressing at FK Sarajevo, where he led the club's scoring charts for four seasons, Repčić, together with Radomir Savić, made a transfer to Red Star Belgrade in the summer of 1979. In his first season in Belgrade (1979–80), he scored 7 league goals in 33 appearances.
Repčić, alongside Savić, moved to Red Star Belgrade in the summer of 1979 after a successful stint at FK Sarajevo. In his debut season with Red Star (1979–80), he scored seven league goals in 33 appearances.