He started his career in his home town club, Polykastro.
In December 1984, he transferred to Iraklis, where he spent the biggest part of his career.
Vakalopoulos was a member of the Greek U21 team, that reached the final of 1988 UEFA European Under-21 Football Championship.
[4] Vakalopoulos scored his only goal at the international level in a friendly win against Norway.
[6] He had previously worked as an assistant in Iraklis first team, under Marinos Ouzounidis.