 Mihalić got a well-paid job and good conditions for training with his new club, so he decided to settle permanently in Belgrade, where he soon married and became a father.One of Mihalić's early international successes came at the 1951 Mediterranean Games in Alexandria, where he won the 10,000 m silver medal, behind Alain Mimoun.Mihalić also competed in the 10,000 m event at the 1952 Summer Olympics in Helsinki, finishing 18th.