 Nyorai mberi kweiyi ndima - Mumitambo yeOlympic yezhizha ya2016, Sun akahwina menduru yegoridhe mumamita mazana maviri akasununguka uye menduru yesirivheri mumamita mazana mana akasununguka. Nokukunda mumakwikwi emamita 200 akasununguka, akava mutambi wokutanga munhoroondo kuti akunde menduru dzendarama dzeOlympic mumakwikwi emamita 200, 400, uye 1500 akasununguka. Pa2017 World Championships, akahwina mukombe wake wepasi rose wekutanga mumamita mazana maviri akasununguka, achiisa rekodhi nyowani yeAsia. Muna 2018, Sun akahwina menduru dzegoridhe mumitambo yese yemahara 200, 400, 800, uye 1500 metres kuAsia Games, pamwe nemenduru dzesirivheri mumitambo miviri ye relay. Muna 2019, akabudirira kudzivirira mazita ake mumakwikwi e200 uye 400 metres freestyle paWorld Championships. Akakunda zita rake rechina rakatevedzana mumamita mazana mana akasununguka, wekutanga uye chete mutambi wekushambira kuti azviite. Kubva muna 2021, rekodhi yenyika yaSun Yang yemamita 1500 inoramba iri yega yeVarume Yega Freestyle refu kosi rekodhi yenyika yakawanikwa pasina kushandiswa kweiyo yepamusoro-tekinoroji yekushambira iyo yakatongwa zvine nharo kukunda kwekushambira uye marekodhi mumwaka wa2008-09. 