Angelique Kerber defeated Andrea Petkovic 6-2 6-4 in the Stuttgart round of 16 on clay. The result followed the form book — Angelique Kerber came in defending last year's round of 16. Angelique Kerber extended the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-06 | Indian Wells | R64 | hard | Angelique Kerber | 6-2 6-1 |
| 2015-04-06 | Charleston | SF | clay | Angelique Kerber | 6-4 6-4 |
| 2011-02-14 | Dubai | R64 | hard | Andrea Petkovic | 6-4 4-6 6-3 |
| 2011-02-07 | Paris | R32 | carpet | Andrea Petkovic | 7-5 3-6 6-2 |
| 2010-10-11 | Linz | R32 | hard | Andrea Petkovic | 6-3 6-4 |
| 2009-08-31 | US Open | R128 | hard | Angelique Kerber | 6-4 5-7 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 (154 vs 123). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About