Satoshi Iwabuchi defeated Yasufumi Yamamoto 6-1 6-1 in the Japan F3 qualifying round on hard. Satoshi Iwabuchi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-17 | Japan F1 | R32 | clay | Yasufumi Yamamoto | 6-4 1-6 7-5 |
| 1996-06-09 | Japan 1 Masters 2 | QF | hard | Satoshi Iwabuchi | 6-4 6-3 |
Averages over each player's completed matches in the selected window (14 vs 1). 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