Nicola Geuer defeated Korina Perkovic 6-0 6-4 in the Koksijde 25K round of 16 on clay. The upset overturned the form book — Korina Perkovic came in leading the head-to-head 1–0. Nicola Geuer claimed a first win over Korina Perkovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-01-17 | Stuttgart Stammheim 10K | R16 | hard | Korina Perkovic | 6-0 2-6 7-5 |