Dee ihe na-aga n'ihu maka paragraf a - Kreft nwetakwara ọlaọcha ọlaọcha asaa na ICF Canoe Sprint World Championships na abụọ na K-1 500 m (1975
, 1979), otu na K-2 500 m (1975), na anọ na K-4 500 m ihe omume (1974, 1975, 1979, 1983).