Oscar Leonard Carl Pistorius (/pɪsˈtɔːriəs/; born November 22, 1986) is a South African sprint runner. Pistorius, who has double below-knee amputations, competes in T44 (single below knee amputees) events though he is actually classified in T43 (double below knee amputee). In 2007, Pistorius took part in his first international competitions for able-bodied athletes. However, his cutting-edge prostheses gave rise to claims that he had an unfair advantage over able-bodied runners. The International Association of Athletics Federations initially ruled him ineligible for competitions conducted under its rules, but on May 16, 2008, the Court ruling that, since he was slower out of the blocks than an able-bodied athlete there was insufficient evidence that Pistorius had an overall net advantage over able-bodied athletes.