[5][6][7] She also attempted for her fourth straight medal in the 100 m backstroke, but missed the podium by a 0.48-second margin behind Japan's Aya Terakawa.

She cleared a FINA B-standard entry time of 1:02.87 (100 m backstroke) from the World Championships in Barcelona, Spain.

[9][10] She also teamed up with Ryu Yoon-Ji, Sun So-Eun, and Kim Hyun-Joo in the 4 × 100 m freestyle relay.

Swimming the third leg, Shim recorded a split of 56.91, but the South Koreans missed the final by two seconds outside the top 8, in a time of 3:44.84.

[11][12] In the 100 m backstroke, Shim challenged seven other swimmers on the fourth heat, including top medal favorites Laure Manaudou of France and Reiko Nakamura of Japan.