Ivo Bratanov defeated Matej Pampoulov 6-3 4-6 6-4 in the Bulgaria 1 4 round of 16 on clay. The upset overturned the form book — Matej Pampoulov came in leading the head-to-head 1–0. Ivo Bratanov claimed a first win over Matej Pampoulov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-20 | Greece 3 Masters 2 | R32 | carpet | Matej Pampoulov | 5-7 6-3 7-5 |