Tomoko Yonemura defeated Jin Hee Kim 3-6 6-2 6-0 in the Tianjin 10K qualifying round on hard. The upset overturned the form book — Jin Hee Kim came in leading the head-to-head 4–1. Tomoko Yonemura narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-14 | Miyazaki 25K | R32 | carpet | Tomoko Yonemura | 6-2 6-3 |
| 2003-06-02 | Seoul 25K | R32 | hard | Jin Hee Kim | 2-6 6-3 6-3 |
| 2002-10-14 | Haibara 25K | R32 | carpet | Jin Hee Kim | 3-6 6-2 6-3 |
| 2001-11-12 | Haibara 10K | R16 | carpet | Jin Hee Kim | 6-2 7-5 |
| 2001-09-10 | Ibaraki 10K | R16 | hard | Jin Hee Kim | 6-2 1-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.