Achievements He won a gold medal in the K-1 event at the 1972 Summer Olympics in Munich. Horn also won six medals at the International Coach Federation Canoe Slalom World Championships with three golds (K-1: 1971, 1975. K-1 team: 1973), two silvers (K-1: 1973. K-1 team: 1971) and a bronze (K-1 team: 1975).