You Na Sul advanced when Yun Hee Kim retired 6-2 2-0 in the Gimcheon 25K q32. You Na Sul claimed a first win over Yun Hee Kim in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-27 | Changwon 25K | Q64 | hard | Yun Hee Kim | 7-5 4-6 6-3 |