Dee ihe na-aga n'ihu maka paragraf a - N'ọnwa Ọgọstụ 2018, Sun gbara asọmpi n'ihe omume ọ bụla nwere onwe ya site na 200 ruo 1500 mita nwere onwe ya na Egwuregwu Eshia
Ọ dị mma. Ọ sonyekwara n'asọmpi 4 × 100 na 4 × 200 mita freestyle relay. Na 200 mita freestyle, Sun meriri ọlaedo na oge nke 1:45.43. O mechara nke mbụ na 400 mita freestyle na oge nke 3:42.92, ihe karịrị sekọnd anọ n'ihu onye na-agba ọsọ Naito Ehara. Site n'imeri oge Horton nke 3:43.76 site na Egwuregwu Commonwealth nke 2018, Sun ghọrọ onye na-egwu mmiri n'ụwa maka ihe omume ahụ maka 2018. N'asọmpi 800 mita freestyle nke ụmụnwoke, nke e webatara n'Egwuregwu Eshia maka oge mbụ, o ritere ọlaedo na oge nke 7:48.36. Na 1500 mita freestyle, ọ gwụchara 1st na oge nke 14:58.53, na-eti onye na-agba ọsọ Nguyễn Huy Hoàng ihe karịrị sekọnd atọ. Ọ bụ oge mbụ Sun na-egwu mmiri n'ime nkeji iri na ise kemgbe Egwuregwu Eshia nke afọ 2014, na nke atọ ya na-esote aha Egwuregwu Eshia na 1500 mita freestyle. Na-anọchite anya China, Sun nyeere ndị otu ya aka mechaa nke abụọ na 4 × 100 mita freestyle relay na oge zuru ezu nke 3:13.29, n'azụ oge Japan nke 3:12.68. Na 4 × 200 mita freestyle relay, o nyeere China aka inweta ọla ọcha na oge 7:05.45, n'azụ Japan 7:05.17.