Ia faaauau pea le faitauina o lenei palakalafa - Na manumalo foʻi Constantin i pine e valu i le ICF Canoe Sprint World Championships faatasi ai ma le siliva (K-2 500 m: 1977) ma pine apamemea e fitu (K-2 500 m: 1978)
, 1979, 1981; K-4 500 m: 1974, 1978, 1979, 1983).