Giannis was born in 1969, in Palaio Faliro- Athens Greece. His mother (Greek Australian born in Adelaide) influenced him to get into various Sports from early childhood: soccer, basketball, swimming, running…

He competed in his first triathlon when he was 21 and has since been involved as an athlete, coach, sports events organiser and administrator, anti doping control officer and sports journalist.

He has competed in more than 200 triathlon and multi sports races (member of the National Team from 1996 to 2000) and has organized more than 50 triathlon races.

He has been Secretary General for the Hellenic Triathlon Federation, member of the National Olympic Committee and Sports Director for the Hellenic High Performance Center.

Under his leadership the Performance Center had the scientific Supervision of the majority of the U23 & U21 National Teams (16 different sports).

His academic/ university background is in chemistry, sports management and administration, business management (MBA), communications marketing (MSc), sports management (MSc), sports coaching and sports science (MSc in Maximisation of Sports Performance).

Swim -Bike -Run Coaching Certifications - More than 30 amongst others :
American Swimming Coaches Association. Level4;5 Coach
Australian Sport Academy, Certificate III in Sport Coaching(SIS30713)
ASCTA, Australian Swimming Teachers & Coaches Association
Accredited Swimming Teacher for Adults and Adolescents &Silver License Swimming Coach