Ka kammala wannan magana: A daren farko na sashen iyo a gasar Olympics, ta lashe lambar azurfa a matsayin wani ɓangare na 4 × 100 mita freestyle relay tare da Manuel, Dana Vollmer, da Katie Ledecky a cikin 3:31.89, wanda shine sabon tarihin Amurka. Ta raba 52.56 ita ce mafi sauri a cikin tawagarta. Ta kuma yi iyo a cikin zafin jiki na farko na 4x100-mita medley relay kuma ta sami lambar zinare lokacin da ƙungiyar ta ci nasara a wasan karshe. A cikin abubuwan da suka faru na mutum, Weitzeil ya gama na bakwai a cikin mita 100 na 'yanci tare da lokaci na 53.30 kuma ya rasa cancanta don wasan karshe na gasar.
Yanayin 'yanci mita 50.