Andrea Petkovic advanced when Kathrin Woerle retired 5-7 7-6 4-0 in the Australian Open round of 128. Andrea Petkovic extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-04 | Bucharest 100K | R16 | clay | Andrea Petkovic | 3-6 7-5 6-3 |
| 2007-04-23 | Torrent 50K | R16 | clay | Andrea Petkovic | 7-5 6-2 |
| 2007-01-29 | Belfort 25K | R16 | carpet | Andrea Petkovic | 2-6 6-2 6-1 |
| 2006-07-31 | Baden-Baden 50K | R32 | clay | Andrea Petkovic | 7-6(5) 6-1 |
Averages over each player's completed matches in the selected window (200 vs 14). 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