Hae Sung Kim defeated Na Ri Kim 3-6 7-5 6-3 in the Go Yang 10K round of 16 on hard. The upset overturned the form book — Na Ri Kim came in leading the head-to-head 1–0. Hae Sung Kim claimed a first win over Na Ri Kim in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-22 | Gimcheon 10K | SF | hard | Na Ri Kim | 6-2 7-6(10) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.