Ia faaauau pea lenei palakalafa - Na manumalo foʻi Schärer i pine e sefulu fā i le FIBT World Championships ma auro e fitu (Tasi-tagata: 1978, 1979, 1982; Fa-tagata: 1971, 1973, 1975, 1986), siliva e tolu (Tasi-tagata: 1983, Fa-tagata: 1977, 1978), ma apamemea e fa (Tasi-tagata: 1981
, Fa-tagata: 1979, 1981, 1982). O uluaʻi taʻamilosaga e lua na ia manumalo ai o se tagata tulei i le 'au a le avetaʻavale o René Stadler a o leʻi avea o ia ma avetaʻavale.