Ioannis Demertzis (basketball)
Ioannis Demertzis is a Greek professional basketball player. He is 1.96 m tall.Professional career
After playing youth basketball with Mantoulidis, Demertzis started his pro playing career in 2005, in the Greek 2nd Division, playing with ICBS. In 2006, he moved to Iraklis, where he stayed only for one year. In 2007, he moved to PAOK Thessaloniki, where he stayed until 2010. He has also played with Marousi, Keravnos, Ikaros Kallitheas, Ethnikos Piraeus and Kavala.
He then moved to Holargos, but left the team without making any appearances in order to join the newly-promoted Doxa Lefkadas of the Greek Basket League.
In 2018, he joined Apollon Patras.