Achievements
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Competing in three Summer Olympics, she won five medals with three golds (K-2 500 m: 1992, K-4 500 m: 1998, 1996) and two silvers (K-2 500 m: 1992, K-4 500 m: 1996). Portwich also won sixteen medals at the International Coach Federation Canoe Sprint World Championships with thirteen golds (K-2 500 m: 1990, 1991, 1995. K-2 5000 m: 1989, 1990, 1991, 1993. K-4 500 m: 1987, 1990, 1991, 1993, 1994, 1995), two silvers (K-4 200 m: 1994, 1995), and a bronze (K-2 500 m: 1993).