She won gold at the
World Junior Taekwondo Championships in
Burnaby, Canada, in 2016. She won the gold medal in the 57 kg division at the
2019 Summer World University Games in
Naples. She went on to retain her title in the 57 kg division at the
2021 Summer World University Games in
Chengdu. Competing at the
2021 Asian Taekwondo Championships she won the gold medal in the 57 kg category in
Beirut. She was a bronze medalist at the delayed
2022 Asian Games in
Hangzhou in September 2023, in the Women's 57 kg. At the
2024 Summer Olympics, she defeated four of the top five athletes in her weight class and Iranian taekwondo artist
Nahid Kiani, and won the gold medal for the
women's 57 kg category for taekwondo. Kim's gold medal win also gave South Korea its 13th gold medal at the 2024 Summer Olympics, tying the country's previous Summer Olympic gold medal records which were set in
2008 and
2012. ==References==