Tjahjono Tjahjono defeated Donny Susetyo 4-6 6-1 6-4 in the Indonesia Masters 1 round of 16 on hard. The result followed the form book — Tjahjono Tjahjono came in leading the head-to-head 1–0. Tjahjono Tjahjono extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-08-26 | Indonesia Masters 3 | R32 | hard | Tjahjono Tjahjono | 6-4 6-2 |