Patrick Zahraj defeated Marcel Zielinski 6-3 6-3 in the M15 Szczawno 1 round of 16 on clay. The upset overturned the form book — Marcel Zielinski came in leading the head-to-head 2–1, but Patrick Zahraj had been the form player, winning 4 of their last 7 on clay. Patrick Zahraj narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-06-13 | M15 Koszalin 1 | R16 | clay | Patrick Zahraj | 7-5 6-0 |
| 2023-10-04 | M15 Bad Waltersdorf 1 | R32 | clay | Marcel Zielinski | 6-7(4) 6-3 6-0 |
| 2023-09-08 | M15 Koszalin 1 | QF | clay | Marcel Zielinski | 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.