Sandra Martinovic defeated Katerina Vankova 4-6 6-4 6-3 in the Erding 10K round of 16 on carpet. The upset overturned the form book — Katerina Vankova came in leading the head-to-head 3–0. Sandra Martinovic claimed a first win over Katerina Vankova in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-08 | Innsbruck 10K | R32 | clay | Katerina Vankova | 1-6 6-3 6-0 |
| 2011-08-01 | Vienna 10K | SF | clay | Katerina Vankova | 7-5 6-3 |
| 2011-07-25 | Bad Waltersdorf 10K | R16 | clay | Katerina Vankova | 6-2 6-1 |
Averages over each player's completed matches in the selected window (1 vs 18). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About