Tasuku Iwami defeated Joji Miyao 6-1 6-4 in the Japan F4 round of 16 on hard. Tasuku Iwami extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-10-20 | Japan F11 | R32 | hard | Tasuku Iwami | 6-0 6-2 |
| 2003-04-21 | Japan F3 | R32 | hard | Joji Miyao | 7-6(3) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.