<prompt> Ngwala go tšwela pele ga serapa se - Ka morago ga go se be gona ka nywaga e seswai, Chang o ile a phadišana feela dipapading tše pedi tša Olympic tša Selemo sa 2008 kua Beijing. O fihleletše FINA B-standard ya 25.78 50 m freestyle le 56.50 100 m freestyle go tšwa Dong-A Swimming Tournament kua Ulsan. Ka 100 m freestyle, Chang o ile a hlohla batho ba bangwe ba šupago ba go rutha ka lebelo la boraro, go akaretša le Arianna Vanderpool-Wallace wa nywaga e 18 yo a tšwago Bahamas. O ile a ngwala lebelo la 55.96 gomme a thopa maemo a bone le la bosometharo ka 0.34 ya motsotswana ka morago ga Birgit Koschischek wa Austria. Ka 50 m ya go kitima ka go kitima ka go iketla  <response>: , Chang o ile a bewa maemong a bo-31 go dikgetho tša mesong. Ge a be a rutha lebelong la senyane, o ile a kitimela boemong bja bohlano ka seripagare sa motsotswana 0.01 ka morago ga Victoria Poon wa Canada ka 25.59. 