Dia Evtimova defeated Maria Penkova 1-6 6-4 6-3 in the Haskovo 10K semi-final on clay. The result followed the form book — Dia Evtimova came in leading the head-to-head 3–1. Dia Evtimova extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-08-21 | Maribor 10K | QF | clay | Dia Evtimova | 7-5 6-2 |
| 2006-05-29 | Rousse 10K | F | clay | Maria Penkova | 5-7 6-4 6-1 |
| 2005-08-22 | Maribor 10K | SF | clay | Dia Evtimova | 6-3 6-4 |
| 2004-08-23 | Maribor 10K | R32 | clay | Dia Evtimova | 6-2 5-7 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.