Career
She represented the Chinese Taipei national team in two editions of the Olympic Games (2004 and 2008), competing in a sprint freestyle double. Nieh made her own swimming history, as a 16-year-old teen, at the 2004 Summer Olympics in Athens, where she competed in the women"s 50 m freestyle. Swimming in heat five, she posted a lifetime best of 27.09 seconds to pick up a fourth spot, but trailed behind Puerto Rico"s Vanessa García by more than a second.
Furthermore, Nieh tied for forty-first overall with Hungary"s Zsuzsanna Csobánki in the prelims.
At the 2008 Summer Olympics in Beijing, Nieh qualified for her second Chinese Taipei team in the 100 m freestyle. Nieh challenged against five other swimmers in heat two, including three from Southeast Asia.
She came only in fifth by nearly five eighths of a second (061) behind Christel Simms of the Philippines with a 57.28. Nieh failed to advance into the semifinals, as she placed forty-third out of 49 swimmers in the overall rankings.