Mezue ahịrịokwu na-esonụ:
ụmụ nwoke 100 m urukurubụba na 2012 Summer Olympics na London, site eclipsing a FINA B-ọkọlọtọ ntinye oge nke 52.45 sekọnd. Ọ gbara ndị ọzọ na-egwu mmiri asaa na okpomọkụ nke atọ, gụnyere Peter Mankoč nke Slovenia, onye mmeri ugboro ise nke Olympic, Clement Lefert nke France, na onye bụbu onye asọmpi Olympic Ryan Pini nke Papua New Guinea. Chang gbara ọsọ ruo ebe nke ise site na otu narị nke abụọ (0.01) n'azụ Pini na oge nke 52.69 sekọnd. Chang enweghị ike ịga n'ihu na ọkara ikpeazu, ebe ọ bụ onye nke iri abụọ na isii n'ozuzu ya n'ime okpomọkụ mbụ.