Matwe Middelkoop defeated Antal Van Der Duim 6-4 3-6 6-4 in the Dominican Republic F1 round of 32 on hard. The upset overturned the form book — Antal Van Der Duim came in leading the head-to-head 2–0, but Matwe Middelkoop had been the form player, winning 4 of their last 6 on hard. Matwe Middelkoop claimed a first win over Antal Van Der Duim in three meetings, narrowing the head-to-head to 2–1.
Middelkoop M. came through in three sets.
Hard: level 1–1 · Clay: Van Der Duim A. leads 1–0