Sybille Bammer defeated Samantha Stosur 6-3 7-5 in the AUT vs AUS round robin on clay. The upset overturned the form book — Samantha Stosur came in leading the head-to-head 3–0. Sybille Bammer claimed a first win over Samantha Stosur in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-23 | Miami | R64 | hard | Samantha Stosur | 6-1 6-1 |
| 2006-04-03 | Amelia Island | R64 | clay | Samantha Stosur | 6-3 6-1 |
| 2006-01-16 | Australian Open | R32 | hard | Samantha Stosur | 7-5 4-6 6-3 |
Averages over each player's completed matches in the selected window (171 vs 198). 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. About