Schärer also won fourteen medals at the FIBT World Championships with seven golds (Two-man: 1978, 1979, 1982; Four-man: 1971, 1973, 1975, 1986), three silvers (Two-man: 1983, Four-man: 1977, 1978), and four bronzes (Two-man: 1981, Four-man: 1979, 1981, 1982). The first two titles he won as pusher in the team of driver René Stadler before a became a driver himself.