Flavia Pennetta defeated Andrea Petkovic 7-5 3-6 6-1 in the Stuttgart round of 32 on clay. The upset overturned the form book — Andrea Petkovic came in leading the head-to-head 4–1, defending last year's round of 32. Flavia Pennetta narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-04 | Madrid | R64 | clay | Andrea Petkovic | 6-3 7-5 |
| 2014-10-27 | Tournament of Champions | F | hard | Andrea Petkovic | 1-6 6-4 6-3 |
| 2010-05-10 | Madrid | R32 | clay | Andrea Petkovic | 7-6(3) 6-3 |
| 2010-03-22 | Miami | R64 | hard | Andrea Petkovic | 6-3 3-6 6-0 |
| 2010-02-15 | Dubai | R32 | hard | Flavia Pennetta | 6-3 6-3 |
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 (78 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About