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.
During his time at FK Sarajevo, Repčić excelled and topped the club's scoring charts for four seasons. He then joined Red Star Belgrade alongside Radomir Savić in the summer of 1979. In his first season with Red Star (1979–80), he scored seven league goals in 33 matches.