Angelique Kerber defeated Petra Kvitova 6-4 4-6 6-2 in the Stuttgart semi-final on clay. The upset overturned the form book — Petra Kvitova came in leading the head-to-head 4–3, defending last year's round of 16, but Angelique Kerber had been the form player, winning 3 of their last 4 on clay. That levelled the head-to-head at 4–4.
Kerber A. came through in three sets.
Kerber A. and Kvitova P. faced 22 of the same opponents in the last 12 months. Kerber A. went 26–10 (72%) against them, Kvitova P. 19–11 (63%). Results against comparable opponents are close (6 : 4 better-results split).
Clay: level 2–2 · Hard: level 2–2
Angelique Kerber beat Petra Kvitova 6-4 4-6 6-2. Umpiry, "Angelique Kerber vs Petra Kvitova — Stuttgart Semi-final", https://umpiry.com/match/2016-04-23/kerber-vs-kvitova-stuttgart-sf?utm_source=cite (as of 23 April 2016).