Tzvetan Mihov defeated Petar Trendafilov 6-1 6-3 in the Bulgaria F3 round of 32 on clay. The upset overturned the form book — Petar Trendafilov came in leading the head-to-head 1–0. Tzvetan Mihov claimed a first win over Petar Trendafilov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-08-27 | Bulgaria F6 | R32 | clay | Petar Trendafilov | 7-6(3) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.