Natalie du Toit

Du Toit lost her left leg below the knee in a road accident as a teenager, raced in the S9 class and won 13 Paralympic golds across Athens, Beijing and London. She also qualified for the Beijing 2008 Olympic 10km open water race, swimming without a prosthesis and finishing 16th. That double shows how strong her stroke was by any standard, and her dominance over S9 freestyle distances was nearly total for a decade.