<prompt> Qedela le nkulumo elandelayo: Ngo-June 30, 2012, wagcina engowesibili ngemva komfowabo emncintiswaneni wamamitha angu-100 emncintiswaneni we-National Track Field Championships ka-2012 owawuseCalgary. Uncintisane kuma-Olympic asehlobo ka-2012 e-  <response>: Umncintiswano wamadoda we-4 x 100 metres nomfowabo uJustin. 