Karin Knapp defeated Galina Voskoboeva 7-6 2-6 6-4 in the Estoril quarter-final on clay. The upset overturned the form book — Galina Voskoboeva came in leading the head-to-head 1–0, but Karin Knapp had been the form player, winning 2 of their last 4 on clay. Karin Knapp claimed a first win over Galina Voskoboeva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-01-19 | Australian Open | R64 | hard | Galina Voskoboeva | 6-4 6-1 |
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 (150 vs 89). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About