Oscar Pistorius is the first Paralympian ever to compete in the able - bodied Olympics . The year - old runs the marathon race and the 4x400-meter relay . He qualified for Sunday 's semifinals in the 400 meters , with a time of 45 seconds . Oscar had both legs paralyzed when he was 11 years old .
Oscar Pistorius is the first Paralympian runner to compete in the able-bodied Olympics . The 25-year-old runs the 400-meter race and the 4x400-meter relay . He qualified for Sunday 's semifinals in the 400 meters , with a time of 45.44 seconds . Pistorius had both legs amputated when he was 11 months old .