[1] She won a bronze medal, as a 17-year-old, at the 1998 Asian Games, and later represented South Korea at the 2000 Summer Olympics.

Choi made her own swimming history at the 1998 Asian Games in Bangkok, Thailand, where she captured a bronze medal in the 100 m backstroke at 1:03.37, finishing behind Japanese duo Mai Nakamura and Tomoko Hagiwara by more than a full body length.

[2] She challenged seven other swimmers in heat three, including Hagiwara, Australia's top favorite Clementine Stoney, and Romania's Diana Mocanu, who later dominated the backstroke double at these Games.

Choi failed to advance into the semifinals, as she placed thirty-fifth overall in the prelims.

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