Coco Vandeweghe defeated Madison Brengle 6-4 6-2 in the 's Hertogenbosch semi-final on grass. The upset overturned the form book — Madison Brengle came in leading the head-to-head 3–2. Coco Vandeweghe narrowed the head-to-head to 3–3.
Vandeweghe C. took it in straight sets.
Vandeweghe C. and Brengle M. faced 6 of the same opponents in the last 12 months. Vandeweghe C. went 4–5 (44%) against them, Brengle M. 2–5 (29%). Vandeweghe C. came out better against 3 of 5 comparable opponents, Brengle M. against 0.
Grass: Vandeweghe C. leads 2–0 · Hard: Brengle M. leads 3–1