Barbara Sobaszkiewicz defeated Lucie Kriegsmannova 3-6 6-1 7-5 in the Mallorca 10K round of 32 on clay. The upset overturned the form book — Lucie Kriegsmannova came in leading the head-to-head 1–0. Barbara Sobaszkiewicz claimed a first win over Lucie Kriegsmannova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-14 | Amiens 10K | R32 | clay | Lucie Kriegsmannova | 6-3 6-4 |