Borislava Botusharova defeated Vivian Zlatanova 4-6 6-4 7-5 in the Sofia 25K q32 on clay. Borislava Botusharova extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-30 | Albena 10K | F | clay | Vivian Zlatanova | 6-3 3-6 7-6(5) |
| 2013-06-17 | Nis 10K | QF | clay | Borislava Botusharova | 4-6 6-2 6-1 |