Ilia Kushev defeated Philipp Mullner 6-7 6-2 6-3 in the Bulgaria 1 4 semi-final on clay. The upset overturned the form book — Philipp Mullner came in leading the head-to-head 1–0. Ilia Kushev claimed a first win over Philipp Mullner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-05-05 | Bulgaria 1 1 | R32 | clay | Philipp Mullner | 6-4 6-4 |