Mezue ahịrịokwu na-esonụ: N'egwuregwu Olimpik nke afọ 2012, ọ gbara ọsọ 100 na 200 Butterfly nke ụmụ nwanyị. N'egwuregwu ndị ahụ, ọ gbara onye nke iri atọ na isii n'egwuregwu ndị ahụ.
100 m butterfly ma ghara iru ngwụcha. Na 200 m butterfly, ọ gwụchara n'ọnọdụ nke iri abụọ na anọ ma ghara iru ngwụcha.