Katerina Avdiyenko defeated Sandra Soler Sola 4-6 6-3 6-2 in the Mallorca 10K round of 32 on clay. The upset overturned the form book — Sandra Soler Sola came in leading the head-to-head 1–0, but Katerina Avdiyenko had been the form player, winning 2 of their last 4 on clay. Katerina Avdiyenko claimed a first win over Sandra Soler Sola in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-11-02 | Mallorca 10K | QF | clay | Sandra Soler Sola | 6-4 2-6 6-3 |