Alenka Hubacek defeated Kiki Bertens 7-6 2-6 6-2 in the Rotterdam 10K round of 32 on clay. The upset overturned the form book — Kiki Bertens came in leading the head-to-head 1–0. Alenka Hubacek claimed a first win over Kiki Bertens in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-15 | Alkmaar 10K | R32 | clay | Kiki Bertens | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.