 Complete the following phrase:  A member of the Mass Ljubljana athletic club, multiple national and cup champion, he was a Balkan youth champion in the 400-meter run. With a member relay, he won first place at the Balkan Indoor Championships in Istanbul, where they broke the national record and the record of the Balkan Championships in the 4 x 400 meters. In addition to this record, he also owns several records in several age categories. The biggest success is a bronze medal at the EYOF European Youth Olympic Festival in Georgia in the 400-meter run and a place in the finals of the 