Dimitrije Zubac defeated Shunsuke Wakita 6-1 4-6 10-1 in the M25 Pirot 1 qualifying round of 16 on clay. The upset overturned the form book — Shunsuke Wakita came in leading the head-to-head 1–0. Dimitrije Zubac claimed a first win over Shunsuke Wakita in two meetings, narrowing the head-to-head to 1–1.
Zubac D. came through in three sets.