Arata Onozawa advanced when Takahiro Ittogi retired 6-4 4-0 in the Japan F9 round of 16. Arata Onozawa claimed a first win over Takahiro Ittogi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-06-18 | Japan F7 | QF | clay | Takahiro Ittogi | 7-6(10) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.