Karolina Jovanovic defeated Petra Sunic 6-4 6-2 in the Sarajevo 10K round of 16 on clay. The upset overturned the form book — Petra Sunic came in leading the head-to-head 2–0. Karolina Jovanovic claimed a first win over Petra Sunic in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-22 | Dubrovnik 10K | R32 | clay | Petra Sunic | 6-0 6-3 |
| 2007-04-23 | Bol 10K | R32 | clay | Petra Sunic | 6-4 4-6 6-1 |