<prompt> Qedela le nkulumo elandelayo: Emidlalweni yama-Olympic asehlobo ka-2012 eLondon, uJoyce wabeka isikhathi esingamasekhondi angu-25.28 eSiqeshini 8 se-  <response>: Emamitha angu-50 ngesitayela samahhala, okwamphoqa ukuba abhekane nokubhukuda nabanye abagijimi ababili ukuze athole indawo yeshumi nesithupha neyokugcina kuma-semi-finals amamitha angu-50. Eshukunyiswa izilaleli zasekhaya, umncintiswano waseBrithani u-Amy Smith wanqoba ukubhukuda ngezikhathi ezingama-24.82, waqeda ukubamba iqhaza kukaJoyce kulo mcimbi. 