Norikazu Sugiyama defeated Hiroyasu Sato 6-1 6-4 in the Japan F6 round of 32 on clay. The upset overturned the form book — Hiroyasu Sato came in leading the head-to-head 1–0. Norikazu Sugiyama claimed a first win over Hiroyasu Sato in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-06-11 | Japan F6 | R32 | carpet | Hiroyasu Sato | 6-4 6-4 |