Kammala jumla mai zuwa: A matsayin dan wasa guda, Kayinu ya fara yin gasa a kan jerin ISU Junior Grand Prix a 2011 kuma ya lashe azurfa a matakin matasa a gasar zakarun Amurka ta 2012. Ta lashe lambar tagulla a gasar
2013 Nebelhorn Trophy, ta farko ta kasa da kasa. A kakar wasa ta gaba, ta dauki tagulla a 2014 Ondrej Nepela Trophy kuma an gayyace ta zuwa manyan wasannin Grand Prix guda biyu, 2014 Cup of China da 2014 Rostelecom Cup.