Joern Renzenbrink defeated Marcos Ondruska 3-6 6-3 7-5 in the Basel round of 32 on hard. The upset overturned the form book — Marcos Ondruska came in leading the head-to-head 1–0, but Joern Renzenbrink had been the form player, winning 1 of their last 4 on hard. Joern Renzenbrink claimed a first win over Marcos Ondruska in two meetings, narrowing the head-to-head to 1–1.
Renzenbrink J. came through in three sets.
Hard: Renzenbrink J. leads 1–0 · Clay: Ondruska M. leads 1–0