Sybille Bammer defeated Elena Dementieva 6-1 6-2 in the US Open round of 32 on hard. The upset overturned the form book — Elena Dementieva came in leading the head-to-head 4–0, defending last year's quarter-final. Sybille Bammer claimed a first win over Elena Dementieva in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-30 | US Open | R64 | hard | Elena Dementieva | 6-3 6-4 |
| 2010-02-22 | Kuala Lumpur | SF | hard | Elena Dementieva | 6-1 6-3 |
| 2009-02-16 | Dubai | R32 | hard | Elena Dementieva | 7-5 6-2 |
| 2008-09-29 | Stuttgart | R16 | clay | Elena Dementieva | 6-1 6-4 |
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 (174 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About