South Korea's 17-year-old Choi Gaon claimed the gold medal with a score of 90.25 on her final run, despite an earlier crash.
Kim, aged 25, settled for silver after a fall on her last run, while Japan's Mitsuki Ono took the bronze medal.
Kim expressed pride in Choi, whom she had mentored, stating it was "all about passing the torch."
Kim revealed she competed with a shoulder injury sustained four weeks prior and will require surgery, considering her silver medal a victory, given her condition.
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