Partnering his sister Marianna Nagy, László Nagy competed at the highest level of international skating between 1947 and 1958. Although they twice won the European Championships they were perennial bronze medallists in world or Olympic competition placing 3rd at 3 World Championships and the Winter Games of 1952 and 1956. They were runners-up at four European Championships, finished 3rd in another and were eight times national champions. Nagy qualified as a doctor of medicine in 1954 and worked at a specialist sports clinic in Budapest for 3 decades. He served as the clinic’s chief physician between 1972 and 1987 and worked as a medical officer for Hungary’s national figure skating and football federations. Nagy also coached a number of successful skaters with the most notable being World Championship medallist Zsuzsa Almássy.