Tasuku Iwami defeated Kento Takeuchi 6-1 7-5 in the Japan F4 round of 32 on clay. The result followed the form book — Tasuku Iwami came in leading the head-to-head 3–0. Tasuku Iwami extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-01 | Thailand F4 | SF | hard | Tasuku Iwami | 3-6 6-3 6-4 |
| 2008-06-16 | Japan F5 | SF | carpet | Tasuku Iwami | 6-4 6-1 |
| 2005-04-25 | Japan F3 | R32 | carpet | Tasuku Iwami | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.