Mudin, a member of the Magyar Atlétikai Club since he was 18, began to practice shot put under the guidance of his brother. He soon excelled with his performances, having broken the Hungarian national record at an Olympic test event in June 1908 with 12.88 metres. At the 1908 Olympic Games he took the seventh place in the freestyle javelin throw and also participated in the Greek discus throw competition and in the discus throw event, however, his final ranking is unknown in both competitions. Four years later, yet as the competitor of Nagyatádi Atlétkiai Club, he finished sixth in the shot put competition.