Kiki Bertens defeated Danielle Harmsen 6-4 6-2 in the Rotterdam 10K final on clay. Kiki Bertens extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-10-12 | Antalya-Belek 10K | R32 | clay | Danielle Harmsen | 6-4 6-7(5) 2-1 |
| 2009-09-28 | Antalya-Belek 10K | SF | clay | Kiki Bertens | 1-6 6-1 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.