Sun Yong Kim Jr defeated Yuki Matsuo 6-0 6-2 in the China F5 round of 16 on hard. The upset overturned the form book — Yuki Matsuo came in leading the head-to-head 1–0. Sun Yong Kim Jr claimed a first win over Yuki Matsuo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-15 | Japan F9 | R32 | carpet | Yuki Matsuo | 6-2 6-3 |