At a young age, he began playing youth club basketball with the junior teams of Pagrati.
During that season, he was the team's second best scorer, behind Earl Harrison, with a scoring average of 20.4 points per game.
From 2000 to 2006, he worked as the head coach of Platonas Schools, where he trained players like Nikos Gkikas, Ioannis Dimakos, Spyros Motsenigos, and Dimitris Cheilaris.
In 2016, Kalampakos was hired to be the head coach of Koroivos Amaliadas, of the Greek Basket League.
[1] After that, he worked as the technical director of Ionikos Nikaias,[2] before he became the head coach of Charilaos Trikoupis.