Career
He is a 1.83 (6 ft 0 in) tall point guard. Spyridonidis began his professional career with the Greek Basket League club Ilysiakos in 2012. In 2013, he signed a four year contract with KAOD. After the team"s relegation to the third division, Spyridonidis moved again to Nea Kifissia.
With the junior national teams of Greece, Spyridonidis played at the following tournaments: the 2011 International Basketball Federation Europe Under-16 Championship, the 2013 International Basketball Federation Europe Under-18 Championship and the 2014 International Basketball Federation Europe Under-20 Championship.