Kammala jumlar da ke gaba: Mizuno ya shiga babban tawagar kasa a shekarar 2017. A watan Maris, ta fafata a gasar Rhythmic Challenge a Indianapolis, Indiana, inda ta lashe zinare a kwallon da tagulla a zagaye. A ƙarshen Maris, an ba ta izini zuwa gasa uku na duniya: Marbella Grand Prix a Marbella, Spain daga Maris 31-Afrilu 2; Sofia International Tournament a Sofia, Bulgaria a watan Mayu; da Guadalajara World Challenge Cup a Guadalajara, Spain daga Yuni 2-4. A cikin
Gasar Gasar Gymnastics ta Amurka a watan Yuni, ta lashe lambar azurfa ta kulob din a bayan 'yar wasan Olympics Laura Zeng. Mizuno ya yi gasa a Gasar Cin Kofin Amurka a watan Oktoba, inda ya ci azurfa a raga, ƙwallo, tef da kewaye, a bayan abokin aikinta Evita Griskenas.