Borislava Botusharova defeated Kristina Ostojic 6-2 6-4 in the Burgas 10K round of 16 on clay. The result followed the form book — Borislava Botusharova came in leading the head-to-head 1–0. Borislava Botusharova extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-17 | Nis 10K | R16 | clay | Borislava Botusharova | 6-7(4) 6-0 6-0 |