Kammala wannan jumla: Ruck ya kasance wani ɓangare na zinare na zinariya 4 × 200 m freestyle
Kungiyar 'Yan wasan Gasar Cin Kofin Duniya ta 2017 a Indianapolis. A cikin tsari ƙungiyar ta karya rikodin duniya na matasa da rikodin gasar. Ruck zai ƙara lambobin zinare da rikodin duniya na matasa a duka 4 × 100 m relay da 4 × 100 m medley. Ta kafa tarihin duniya na matasa a cikin 'yan mata na mita 100 na baya, amma za ta rasa rikodin da lambar zinare ga Regan Smith yayin da ta lashe lambar azurfa a cikin taron. Yayin da take yin iyo a cikin tseren tseren mita 200, ta rage rikodin gasar sau biyu lokacin da ta kafa 1:57.08. Ruck kuma ta kafa tarihin gasar tseren mita 100 yayin da take jagorantar tseren mita 4 × 100 lokacin da ta yi iyo zuwa 53.63.