Danielle Harmsen defeated Conny Perrin 2-6 6-3 6-2 in the Stuttgart Vaihingen 25K round of 32 on clay. The upset overturned the form book — Conny Perrin came in leading the head-to-head 1–0. Danielle Harmsen claimed a first win over Conny Perrin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-02-07 | Mallorca 10K | QF | clay | Conny Perrin | 6-4 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.