Constance Sibille defeated Janina Toljan 3-6 6-3 6-1 in the Solarino $10K qualifying round on hard. The upset overturned the form book — Janina Toljan came in leading the head-to-head 1–0. Constance Sibille claimed a first win over Janina Toljan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-03 | Wiesbaden 10K | R32 | clay | Janina Toljan | 7-6(7) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.