Daiji Morii defeated Hyeong Keun Song 7-5 6-2 in the Japan Masters 2 round of 16 on hard. The upset overturned the form book — Hyeong Keun Song came in leading the head-to-head 1–0. Daiji Morii claimed a first win over Hyeong Keun Song in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-11-02 | Japan Masters 4 | R16 | hard | Hyeong Keun Song | 6-3 7-5 |