Jun Kato defeated Takahiro Terachi 4-6 6-4 6-0 in the Japan F6 round of 32 on hard. The upset overturned the form book — Takahiro Terachi came in leading the head-to-head 3–0. Jun Kato claimed a first win over Takahiro Terachi in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-10-28 | Hong Kong F2 | QF | hard | Takahiro Terachi | 6-3 6-2 |
| 2002-04-29 | Great Britain F3 | R32 | clay | Takahiro Terachi | 6-4 6-3 |
| 2001-03-26 | Japan F3 | SF | clay | Takahiro Terachi | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.