Seong Hoon Choi defeated Seung Ho Ji 6-3 7-5 in the Korea Masters 2 round of 16 on clay. The upset overturned the form book — Seung Ho Ji came in leading the head-to-head 2–0. Seong Hoon Choi claimed a first win over Seung Ho Ji in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-07-13 | Malaysia 2 Masters 2 | R32 | hard | Seung Ho Ji | 6-0 4-6 6-4 |
| 1991-05-20 | Korea Masters 1 | R32 | clay | Seung Ho Ji | 6-1 6-2 |