Dimopoulos started his career from Ifaistos Vounargou, a
fifth-division club scoring 34 goals in the 1980–81 season. His performances impressed the league's champions Aias Gastouni who signed Dimopoulos for 1 million drachmas, a record for the division at the time. During his first season in the
fourth division scored 25 goals helping his team finish 5th in the third group.Despite
PAOK's interest where his brother Christos was playing,
Panathinaikos signed him in the summer of 1982. He impressed coach
Ștefan Kovács in his first season with the
Greens scoring 17 goals, most of them after coming off the bench. Panathinikos' squad had then many experienced players such as
Mike Galakos,
Kostas Mavridis,
Juan Ramón Rocha,
Giannis Kyrastas, and
Tschen La Ling, even reaching the European Cup's semifinals in
1984–85 losing out to champions Liverpool.Five years later he signed mid-season for Iraklis in a sqiad with players like
Vasilis Hatzipanagis and
Savvas Kofidis and helping his team qualify for the
1990-91 UEFA Cup. He moved to PAOK in 1992, while the 1994-95 season was his last in
Alpha Ethniki with
Ethnikos Piraeus. ==International career==