Sundqvist also won ten medals at the ICF Canoe Sprint World Championships with a gold (K-4 1000 m: 1985), two silvers (K-2 10000 m: 1993, K-4 1000 m: 1987), and seven bronzes (K-1 1000 m: 1985, 1989; K-2 500 m: 1987, K-2 1000 m: 1993, K-2 10000 m: 1983, K-4 500 m: 1985, K-4 10000 m: 1990).