Bianca Koch defeated Julia Wachaczyk 6-2 6-2 in the Enschede 10K round of 32 on clay. Bianca Koch extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-12 | Ratingen 10K | QF | clay | Julia Wachaczyk | 6-3 6-2 |
| 2010-08-09 | Versmold 25K | R32 | clay | Bianca Koch | 5-7 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.