Anna Chakvetadze defeated Ana Ivanovic 4-6 6-2 6-4 in the Warsaw quarter-final on clay. The upset overturned the form book — Ana Ivanovic came in leading the head-to-head 2–1, defending last year's semi-final. Anna Chakvetadze narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-07-31 | San Diego | R16 | hard | Anna Chakvetadze | 4-6 6-4 6-1 |
| 2006-03-06 | Indian Wells | R16 | hard | Ana Ivanovic | 6-3 6-3 |
| 2005-05-09 | Rome | R32 | clay | Ana Ivanovic | 5-7 6-3 6-2 |
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 (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About