First successes in discus throw came in 2006. In her first major competition, the 2006 World Junior Championships, Perković failed to make the final, but became a regular international medalist thereafter, winning silver medals in both the World Youth Championships and the European Junior Championships in 2007, and a bronze in the 2008 World Junior Championships. She was ranked 5th in the 2008 junior world list with 55.89 m.