Kosuke Naruse advanced past Tasuku Iwami via walkover in the Japan F5 round of 16. Kosuke Naruse claimed a first win over Tasuku Iwami in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-06-27 | Japan F8 | R32 | hard | Tasuku Iwami | 6-0 6-1 |