Kotaro Miyachi defeated Hiroya Umakoshi 6-2 6-4 in the Japan 1 Masters 2 round of 16 on hard. The result followed the form book — Kotaro Miyachi came in leading the head-to-head 1–0. Kotaro Miyachi extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-12 | Japan F3 | R32 | hard | Kotaro Miyachi | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.