Ilias's main hobby is performing the Korean martial art Taekwondo. Ilias is a 3rd Dan degree black belt and have been appointed the instructor of the SMHI-IF self-defence club since November 2012. He has been also acting as the instructor for SMHI’s boxing club since January 2015. In addition, he had been appointed as the team captain and assistant instructor at Imperial College Union Taekwondo Club (2006-2009) and Victoria University of Wellington Taekwondo Club (2009-2011).
Other interests include Aikido, Kung Fu, boxing, football, volleyball, swimming, squash, running, basketball, table tennis salsa and Greek traditional dancing. Finally, he had been studying traditional Greek Byzantine music between 2006 and 2009.
- 2011: North Island Development Taekwondo tournament 1st Place
- 2011: New Zealand Open Taekwondo tournament 2nd Place
- 2010: North Island Development Taekwondo tournament 2nd Place
- 2010: Wellington Region Taekwondo Championships 1st Place
- 2007: IDEA League Taekwondo Championships 1st Place
- 2006: British Student Taekwondo Federation National Student Championships 3rd Place
- 2006: London Capital Taekwondo Cup 2nd Place
- 2004: Greek National Student Taekwondo Championships 2nd Place
- 1998: Greek National Taekwondo Championships 3rd Place