In the first round of elimination, she faced 34th-ranked Elpida Romantzi of Greece.
This gave her the 51st seed for the final competition bracket in which she faced 14th seed Bérengère Schuh in the first round.
In the second round Joo was too strong for Natalia Valeeva (110-108) and via Bérengère Schuh (109-104) in the third round she advanced to the quarter finals.