Achievements Competing in three Summer Olympics, he won two silver medals in the K-4 1000 m event, earning them in 1972 and 1980. Zafiu also won six medals at the International Coach Federation Canoe Sprint World Championships with a gold (K-1 4 x 500 m: 1974), four silvers (K-1 4 x 500 m: 1970, 1971, 1975. K-4 1000 m: 1978), and a bronze (K-1 4 x 500 m: 1973).