Na manumalo Schwingl i pine e fā i le ICF Canoe Sprint World Championships, e lua siliva (K-1 500 m: 1954, K-2 500 m: 1950) ma e lua apamemea (K-1 500 m: 1950, K-2 500 m: 1948). Na ia manumalo foi i pine e fitu i le ICF Canoe Slalom World Championships ma auro e tolu (Folding K-1: 1953
; Folding K-1 team: 1949, 1951), lua siliva (Folding K-1: 1949, 1951) ma lua 'apamemea (Folding K-1 team: 1953, 1957). E oʻo mai i le 2009, o Schwingl na o le pau lea o le fafine na manumalo i le pine i le slalom ma le sprint canoeing world championships.