Iveta Gerlova defeated Constance Sibille 6-3 6-4 in the Dijon 10K round of 32 on hard. The upset overturned the form book — Constance Sibille came in leading the head-to-head 1–0. Iveta Gerlova claimed a first win over Constance Sibille in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-01-19 | Wrexham 10K | QF | hard | Constance Sibille | 3-6 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.