Gisela Dulko defeated Victoria Azarenka 6-4 6-3 in the Stuttgart round of 16 on clay. The upset overturned the form book — Victoria Azarenka came in leading the head-to-head 3–2, defending last year's semi-final. Gisela Dulko narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-29 | US Open | R64 | hard | Victoria Azarenka | 6-4 6-3 |
| 2010-08-30 | US Open | R64 | hard | Gisela Dulko | 5-1 RET |
| 2010-05-24 | Roland Garros | R128 | clay | Gisela Dulko | 6-1 6-2 |
| 2008-05-05 | Berlin | R16 | grass | Victoria Azarenka | 6-3 6-1 |
| 2007-04-30 | Estoril | QF | clay | Victoria Azarenka | 6-1 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 (115 vs 195). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About