Shin competed at the 2012 Summer Olympics in the Women's épée in both the individual and team event. In the semifinals of women's individual épée, she lost to German Britta Heidemann after a timekeeping error extended bout time. The situation arose at the end of the one-minute overtime (sudden death) with the match tied 5-5. Without the extension, Shin would have won the tied bout on the basis of priority, which is randomly awarded to one fencer prior to the overtime period.