Lee won the silver medal in the women's keirin at the 2018 Asian Games.

[3] She won a silver medal in the women's keirin at the 2020 World Championships, the best result ever for a Korean cyclist.

[4] With this result, she became the world number 1 in women's keirin.

[4] Alongside Hwang Hyeon-seo, Kim Ha-eun, Cho Sun-yong, Lee was part of the women's sprint team that won the silver medal at the 2022 Asian Games.

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