Mezue ahịrịokwu na-esonụ: Na 2016 Summer Olympics, Sun meriri 200 mita freestyle na oge nke 1:44.65, na-agwụ 0.55 sekọnd n'ihu onye na-agba ọsọ Chad le Clos. Ọ bụ aha mbụ nke Sun na mba ụwa n'ihe omume a, ọ ghọkwara onye egwuregwu China mbụ meriri ọla edo n'ihe omume a. O ritere ọlaọcha na 400 mita freestyle na oge nke 3:41.68, na-agwụ 0.13 sekọnd n'azụ Mack Horton nke Australia. Sun gbara onye nke iri na isii n'asọmpị asọmpị nke afọ a.
1500 mita freestyle, clocking na na 15:01.97. Site na nrite ọla edo ya na 200 mita freestyle na 400 na 1500 mita freestyle ọla edo ya na 2012 Summer Olympics, Sun ghọrọ onye mbụ na-egwu mmiri na akụkọ ihe mere eme iji merie ọla edo Olympic na 200, 400, na 1500 mita freestyle.