Kolovos started his career from Apollon Larissa playing in Delta Ethniki.
In the summer of 1985 he was transferred to the 1985 Greek Cup winners AEL alongside another young talent, Vassilis Karapialis, and under experienced Polish coach Andrzej Strejlau.
[2][3] The following year, he was released by the club after not being in Marcin Bochynek's plans and he signed for fourth division side Toxotis.
He subsequently joined Ampelokipoi Larissa playing with the club in Delta Ethniki under coach Nikos Vlachoulis and the Larissa FCA league alongside his former AEL teammate Babis Ntosas and future Greece international Vangelis Moras.
This biographical article related to association football in Greece, about a forward, is a stub.