Denys Klok defeated Yan Sabanin 7-5 7-6 in the M25 Karlsruhe 1 qualifying round of 32 on clay. The upset overturned the form book — Yan Sabanin came in leading the head-to-head 1–0. Denys Klok claimed a first win over Yan Sabanin in two meetings, narrowing the head-to-head to 1–1.
Klok D. took it in straight sets.
Clay: Klok D. leads 1–0 · Hard: Sabanin Y. leads 1–0