Andrija Mijačika was COC Secretary General from 27 February 2001 and ex officio COC Council member from 2000 to 2001. He served as Secretary General until 27 March 2002, when he suddenly passed away at the age of 47. His last project was the 2002 Olympic Winter Games in Salt Lake City.
An excellent organiser and experienced sports official, he was Secretary General of the Zagreb Sports Association from 1993 until he was elected COC Secretary General in 2001. Before that, Andrija Mijačika held several leading positions in municipal sports institutions in Zagreb, among others in the Zagreb City Office of Education and Sport.
As a sports official, he held to positions in the organising committees of many international competitions hosted by Croatia, such as the II World Military Games in 1999. He deserves most credit for the international esteem of the annual IAAF Zagreb Athletics Meeting, which was gradually upgraded to IAAF Grand Prix status and which is a World Challenge now.
Andrija Mijačika, who held a degree in Electrical Engineering, was born in Zagreb on 12 July 1954. He practised gymnastics and water polo in his youth. He achieved his best results in taekwondo, which he practised from 1971 to 1984, when he placed fifth at the World Championships in Glasgow. He was two-time Yugoslav and three-time Croatian champion. After finishing his career as an athlete, he was a successful coach, national team manager and Secretary General of the Croatian Taekwondo Federation.