Jonathan Chu defeated Yaoki Ishii 6-4 6-2 in the Japan F12 round of 32 on hard. The result followed the form book — Jonathan Chu came in leading the head-to-head 1–0. Jonathan Chu extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-29 | Japan F9 | R32 | hard | Jonathan Chu | 7-5 6-2 |