Eui Jong Chang defeated Kotaro Miyachi 7-6 4-6 6-1 in the Japan Masters 2 qualifying round on hard. The upset overturned the form book — Kotaro Miyachi came in leading the head-to-head 1–0, but Eui Jong Chang had been the form player, winning 2 of their last 4 on hard. Eui Jong Chang claimed a first win over Kotaro Miyachi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-11-08 | Japan Masters 4 | R16 | hard | Kotaro Miyachi | 6-4 6-7 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.