Mezue nkebi ahịrịokwu a: Mgbe afọ asatọ gachara, ọ bụ naanị n'asọmpi abụọ ka Chang si gbaa ọsọ n'egwuregwu Olimpik nke afọ 2008 e mere na Beijing. O nwetara ụkpụrụ FINA B nke 25.78 (50 m freestyle) na 56.50 (100 m freestyle) site na Dong-A Swimming Tournament na Ulsan. Na 100 m freestyle, Chang gbara ndị ọzọ na-egwu mmiri asaa na okpomọkụ atọ, gụnyere Arianna Vanderpool-Wallace dị afọ 18 nke Bahamas. O dere oge kacha mma nke 55.96 iji nweta ebe nke anọ na nke iri atọ na abụọ n'ozuzu site na 0.34 nke nke abụọ n'azụ onye Austria bụ Birgit Koschischek. N'ime
Na 50 m freestyle, Chang gbara onye nke iri atọ na otu n'isi ụtụtụ. Na-egwu mmiri na okpomọkụ itoolu, ọ gbara ọsọ gaa n'ọnọdụ nke ise site na otu narị nke abụọ (0.01) n'azụ Victoria Poon nke Canada na 25.59.