Mezue ahịrịokwu na-esonụ: Rule enweghị ike ịga n'ihu na semifinals nke
ụmụnwaanyị na-agba ọsọ 100m butterfly. Agbanyeghị ọ gara n'ihu na ọkara ikpeazu nke 200 m urukurubụba ebe ọ bụ na enwere naanị ndị na-egwu mmiri 16 na-asọmpi (na 16 kachasị elu na okpomọkụ ruru eru na ọkara ikpeazu). Ọ gara n'ihu n'asọmpi 200 m butterfly mgbe ọ nọrọ n'ọkwa nke iri na ise.