Oscar Leonard Carl Pistorius OIB (/pɪsˈtɔriəs/; born 22 November 1986) is a South African sprint runner. Although both of Pistorius' legs were amputated below the knee when he was 11 months old, he has competed in events for single below-knee amputees and for able-bodied athletes.After becoming a Paralympic champion, Pistorius attempted to enter able-bodied international competition, over persistent objections of the IAAF and charges that his artificial limbs gave an unfair advantage.