Nyorai kupfuurira kweiyi ndima - Pazuva rechina, Dressel akaiswa panzvimbo yechipiri yose zvayo mumakwikwi okutanga emamita 100 akasununguka
nenguva ye47.73 ndokupfuurira kuenda kumasemifainari. Mangwanani akatevera emakwikwi, akahwina 47.23 mumakwikwi ake ekupedzisira uye akaenderera mberi kuenda kunzvimbo yekupedzisira yechipiri kumakwikwi ese ekupedzisira. Dressel akakunda menduru yake yokutanga yegoridhe yeOlympic mumutambo wokupedzisira wemamita 100 akasununguka nenguva ye47.02, rekodhi itsva yeOlympic. Dressel akapedza nhanhatu dzemazana ezana remasekondi pamberi peAustralia Kyle Chalmers, yaive shanduko yemakwikwi eOlympic kubva ku2016 Summer Olympics uko Chalmers akahwina menduru yegoridhe uye Dressel akapedza wechitanhatu mumamita zana akasununguka.