Prior to her time with the Longhorns, she attended Phillips Academy in Andover, Massachusetts, where she was a 4-year varsity athlete and a formerly held various NEPSAC swimming records.

[2][3][4] She also placed seventeenth, as a member of the South Korean team, in the 4 × 100 m medley relay (4:16.93).

[5] After an eight-year absence, Chang competed only in two events at the 2008 Summer Olympics in Beijing.

[6][7][8] In the 100 m freestyle, Chang challenged seven other swimmers in heat three, including 18-year-old Arianna Vanderpool-Wallace of the Bahamas.

She posted a lifetime best of 55.96 to earn a fourth spot and thirty-second overall by 0.34 of a second behind Austria's Birgit Koschischek.