Mathias Feitsch defeated Todor Enev 6-2 7-6 in the Bulgaria F2 round of 32 on clay. The upset overturned the form book — Todor Enev came in leading the head-to-head 1–0. Mathias Feitsch claimed a first win over Todor Enev in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-01 | Bulgaria 1 1 | R32 | clay | Todor Enev | 6-3 6-1 |