[1] He is a sixth-place finalist in the 50 m freestyle, when his nation South Korea hosted the 2002 Asian Games in Busan.

[2] Lee qualified for two swimming events at the 2004 Summer Olympics in Athens, by eclipsing FINA B-standard entry times of 22.95 (50 m freestyle) and 51.84 (100 m freestyle) from the Dong-A Swimming Tournament in Seoul.

[3][4][5] In the 100 m freestyle, Lee challenged seven other swimmers on the third heat, including Olympic veteran Carl Probert of Fiji.

He shared a second seed and forty-fifth place tie with Panama's Ismael Ortiz in 51.74.

Swimming in heat seven, he picked up a fourth spot by 0.15 of a second behind Serbia and Montenegro's Milorad Čavić in 23.05.