Petra Kvitova defeated Andrea Petkovic 6-2 6-4 in the CZE vs GER round robin on hard. The upset overturned the form book — Andrea Petkovic came in leading the head-to-head 4–2. Petra Kvitova narrowed the head-to-head to 4–3.
Kvitova P. took it in straight sets.
Kvitova P. and Petkovic A. faced 13 of the same opponents in the last 12 months. Kvitova P. went 15–6 (71%) against them, Petkovic A. 10–10 (50%). Kvitova P. came out better against 4 of 13 comparable opponents, Petkovic A. against 2 — though 1 of those edges carries caveats (lower-tier event).
Hard: Kvitova P. leads 3–2 · Grass: Petkovic A. leads 1–0 · Clay: Petkovic A. leads 1–0