Karolina Kosinska defeated Sandra Martinovic 6-0 6-4 in the Trnava 25K round of 32 on clay. The upset overturned the form book — Sandra Martinovic came in leading the head-to-head 1–0, but Karolina Kosinska had been the form player, winning 2 of their last 7 on clay. Karolina Kosinska claimed a first win over Sandra Martinovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-11-19 | Opole 25K | R32 | carpet | Sandra Martinovic | 6-3 4-6 6-2 |