In 1934 he joined the infrastructure departments of AEK Athens' academy and in 1938 with coach Kostas Negrepontis he was promoted to the first team, replacing Christos Ribas in a 3–1 against Apollon Athens.

He remained at AEK Athens until the period 1954, when he stopped playing football at the age of 33.

With AEK he won 2 Panhellenic Championships, 3 Cups and 4 Athens FCA Leagues including a double in 1939, He also played with the Athens Mixed Team.

[2][3] He was also part of Greece's squad for the 1952 Summer Olympics, but he did not play in any matches.

[4] Delavinias was married and had a child named Elenitsa.