Adam Moundir defeated Stefan Popovic 6-1 6-2 in the M15 Metzingen 1 quarter-final on clay. The upset overturned the form book — Stefan Popovic came in leading the head-to-head 1–0. Adam Moundir claimed a first win over Stefan Popovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-05-25 | M15 Brcko 1 | R16 | clay | Stefan Popovic | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.