Tasuku Iwami defeated Hiroki Kondo 6-4 6-4 in the Japan F6 final on carpet. The upset overturned the form book — Hiroki Kondo came in leading the head-to-head 3–2. Tasuku Iwami narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-21 | Japan F7 | SF | carpet | Hiroki Kondo | 6-3 6-4 |
| 2009-04-13 | Korean Rep F2 | R16 | hard | Hiroki Kondo | 6-2 6-0 |
| 2008-10-13 | Japan F10 | QF | hard | Hiroki Kondo | 2-6 6-2 6-4 |
| 2008-06-16 | Japan F5 | QF | carpet | Tasuku Iwami | 6-4 6-1 |
| 2003-09-01 | Japan F6 | R16 | hard | Tasuku Iwami | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.