Marcella Koek defeated Carmen Lopez Rueda 4-6 6-3 7-6 in the Giza 10K round of 16 on clay. The upset overturned the form book — Carmen Lopez Rueda came in leading the head-to-head 1–0. Marcella Koek claimed a first win over Carmen Lopez Rueda in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-01 | Mallorca 10K | R16 | clay | Carmen Lopez Rueda | 7-5 6-4 |