[1] Douvikas made his professional debut on 19 August 2017, in a 2–1 home loss against PAS Giannina, coming in as a substitute.

[2] On 26 October, he scored his first professional goal in a 2–1 home win against AO Chania Kissamikos in the 2017–18 Greek Cup.

[5] On 18 December 2018, Douvikas scored in a 4–0 away win against Apollon Paralimnio in the 2018–19 Greek Cup, ending a lengthy drought.

[9] On 31 October 2020, he scored in the late stages of a home game against Larissa, salvaging a point for his team with the final 1–1 draw.

[17] On 23 April 2021, Utrecht officially announced the signing of the talented striker on a four-year contract for a fee that exceeded €1,000,000.

[27] On 24 March 2021, Douvikas was called up to the Greece senior team by coach John van 't Schip for the forthcoming 2022 FIFA World Cup qualifiers against Spain and Georgia.