He won a gold medal at the FIS Freestyle Ski and Snowboarding World Championships 2023 in the halfpipe.

[1] In 2023, Lee won the gold medal in the halfpipe at the FIS Freestyle Ski and Snowboarding World Championships 2023 in Bakuriani, Georgia.

[2][3] At the 2024 Winter Youth Olympics in Gangwon Province, South Korea, Lee grabbed two gold medals in snowboard men's slopestyle and halfpipe.

Lee took men's snowboard slopestyle gold at the Harbin 2025 Asian Winter Games.

Lee scored 90.00 points with a triple cork 1440 on his third run to claim gold in the men's snowboard slopestyle final.