Tatsuma Ito defeated Toshiharu Kato 6-2 6-2 in the Japan F8 round of 16 on hard. The upset overturned the form book — Toshiharu Kato came in leading the head-to-head 1–0, but Tatsuma Ito had been the form player, winning 2 of their last 5 on hard. Tatsuma Ito claimed a first win over Toshiharu Kato in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-04-02 | Japan F3 | R32 | carpet | Toshiharu Kato | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.