Kotaro Miyachi defeated Eui Jong Chang 6-4 6-7 6-4 in the Japan Masters 4 round of 16 on hard. The upset overturned the form book — Eui Jong Chang came in leading the head-to-head 1–0. Kotaro Miyachi claimed a first win over Eui Jong Chang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-11-08 | Japan Masters 2 | QF | hard | Eui Jong Chang | 7-6 4-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.