Petra Kvitova defeated Garbine Muguruza 6-1 3-6 6-0 in the Stuttgart quarter-final on clay. The upset overturned the form book — Garbine Muguruza came in leading the head-to-head 2–1. Petra Kvitova narrowed the head-to-head to 2–2.
Kvitova P. came through in three sets.
Kvitova P. and Muguruza G. faced 13 of the same opponents in the last 12 months. Kvitova P. went 12–8 (60%) against them, Muguruza G. 15–8 (65%). Results against comparable opponents are close (5 : 4 better-results split).
Clay: Kvitova P. leads 2–0 · Hard: Muguruza G. leads 2–0