[1] She picked up a total of fifteen medals in her career, including a silver from the 2002 Asian Games in Busan, and also finished seventh in the over-78 kg division at the 2004 Summer Olympics.

[2] Choi first appeared in the international scene as part of the host nation's squad at the 2002 Asian Games in Busan, where she picked up a silver medal in the over-78 kg division, losing the final match by a waza-ari point to China's Sun Fuming.

[2][3][4] At the 2004 Summer Olympics in Athens, Choi qualified for the South Korean squad in the women's heavyweight class (+78 kg), by placing third and receiving a berth from the Asian Championships in Almaty, Kazakhstan.

She lost her opening match to Russia's Tea Donguzashvili, who successfully scored an ippon and threw her into the tatami with an obi otoshi (belt drop) nearly twenty seconds before the two-minute mark.

[5] In the repechage, Choi redeemed her strength to easily tap Egypt's Samah Ramadan out of the mat with an ippon seoi nage (one-arm shoulder throw) and then earned two yuko points to thwart Italy's Barbara Andolina.