Takahiro Terachi defeated Michihisa Onoda 6-3 6-7 6-3 in the Japan F2 qualifying round on carpet. The result followed the form book — Takahiro Terachi came in leading the head-to-head 3–1. Takahiro Terachi extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-05-03 | Korea Rep F1 | R16 | hard | Michihisa Onoda | 3-6 6-3 6-1 |
| 2002-09-09 | Japan F7 | QF | hard | Takahiro Terachi | 7-6(5) 7-6(2) |
| 1999-05-12 | Japan F3 | SF | hard | Takahiro Terachi | 6-3 4-6 6-3 |
| 1998-10-07 | Japan F4 | QF | carpet | Takahiro Terachi | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.