Arantxa Parra Santonja defeated Jarmila Gajdosova 6-7 7-5 7-5 in the Estoril quarter-final on clay. The upset overturned the form book — Jarmila Gajdosova came in leading the head-to-head 1–0, defending last year's quarter-final. Arantxa Parra Santonja claimed a first win over Jarmila Gajdosova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-01-03 | Brisbane | R32 | hard | Jarmila Gajdosova | 6-2 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (60 vs 60). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About