Yuichi Sugita defeated Yaoki Ishii 6-3 6-1 in the Japan F7 qualifying round on hard. Yuichi Sugita extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-23 | Japan F2 | QF | hard | Yuichi Sugita | 6-2 6-3 |
| 2008-03-31 | Japan F3 | QF | hard | Yaoki Ishii | 7-6(5) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.