Dia Evtimova defeated Maria Penkova 6-2 5-7 6-0 in the Maribor 10K round of 32 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 |
| 2006-06-05 | Haskovo 10K | SF | clay | Dia Evtimova | 1-6 6-4 6-3 |
| 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 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.