Cika wannan jumla: Ku ya wakilci Koriya ta Kudu a wasan kwallon kafa na maza da kuma
wasan harbi na maza a wasannin Olympics na 2016 a Rio de Janeiro, Brazil. Ku da tawagar Koriya ta Kudu sun lashe lambar zinare a wasan kungiya. Ku ya harbi cikakkun goma a jere a cikin saiti uku a wasan zinare da Amurka. Nasarar Koriya ta Kudu a kan Amurka ta kasance karo na farko da wata tawagar 'yan wasan Korea ta Kudu ta doke wata tawagar' yan wasan Amurka a gasar Olympics. A wasan harbi na maza, Ku ya doke dan Faransa Jean-Charles Valladont a wasan karshe don lashe lambar zinare ta biyu a gasar Olympics.