Kammala jumla mai zuwa: A Wasannin Olympics na bazara na 2016, Sun ta lashe lambar zinare a tseren mita 200 da kuma lambar azurfa a tseren mita 400. Ta hanyar lashe tseren mita 200, ya zama dan wasa na farko a tarihi da ya lashe lambar zinare a gasar Olympics a tseren mita 200, 400, da kuma mita 1500. A Gasar Cin Kofin Duniya ta 2017, ya lashe taken duniya na farko a tseren mita 200, inda ya kafa sabon tarihin Asiya. A cikin 2018, Sun ya lashe lambobin zinare a cikin kowane nau'in kyauta (200, 400, 800, da 1500 mita) a gasar Olympics ta Duniya.
Wasannin Asiya, da kuma lambar azurfa a wasanni biyu na relay. A cikin 2019, ya sami nasarar kare taken sa a cikin tseren mita 200 da 400 na kyauta a Gasar Cin Kofin Duniya. Ya lashe lambar yabo ta huɗu a jere a tseren mita 400, na farko kuma kawai mai iyo da ya yi hakan. Ya zuwa 2021, rikodin duniya na mita 1500 na Sun Yang ya kasance shine kawai rikodin duniya na maza na mutum mai tsawo wanda aka samu ba tare da amfani da kayan wanka na zamani ba wanda ya mamaye cin nasara da rikodin yin iyo a cikin kakar 2008-09.