Satoshi Iwabuchi defeated Yaoki Ishii 6-4 6-1 in the Japan F5 qualifying round on hard. The result followed the form book — Satoshi Iwabuchi came in leading the head-to-head 5–1. Satoshi Iwabuchi extended the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-08-27 | Great Britain F16 | R32 | hard | Satoshi Iwabuchi | 6-1 6-2 |
| 2006-10-16 | Japan F11 | R32 | hard | Satoshi Iwabuchi | 6-3 1-6 6-1 |
| 2006-06-19 | Japan F7 | QF | carpet | Satoshi Iwabuchi | 6-4 6-3 |
| 2004-08-30 | Japan F6 | QF | hard | Satoshi Iwabuchi | 6-3 6-2 |
| 2004-04-26 | Japan F3 | R32 | hard | Satoshi Iwabuchi | 4-6 7-5 7-5 |
| 1999-03-24 | Japan F2 | QF | carpet | Yaoki Ishii | 6-3 6-3 |
Averages over each player's completed matches in the selected window (12 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About