Career
Kim qualified for the women"s 100 m backstroke at the 2008 Summer Olympics in Beijing, by clearing a FINA B-standard entry time of 1:03.82 from the Dong-A Swimming Championships in Ulsan. Kim challenged five other swimmers on the second heat, including two-time Olympians Gisela Morales of Guatemala, and Marica Stražmešter of Serbia. She finished ahead of 13-year-old Yekaterina Rudenko of Kazakhstan in fifth place by 0.23 of a second with a time of 1:04.63.
Kim, however, failed to advance into the semifinals, as she placed forty-fourth out of 49 swimmers in the evening preliminaries.