Natalija Kostic defeated Raluca Elena Platon 6-2 6-1 in the Dubrovnik 10K round of 32 on clay. The result followed the form book — Natalija Kostic came in leading the head-to-head 1–0. Natalija Kostic extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-11-07 | Antalya 10K | QF | clay | Natalija Kostic | 4-6 7-6(6) 6-0 |