Maciej Kazanowski defeated Maciej Matuszczyk 7-6 6-2 in the M15 Krakow q32 on clay. The upset overturned the form book — Maciej Matuszczyk came in leading the head-to-head 1–0. Maciej Kazanowski claimed a first win over Maciej Matuszczyk in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-27 | M25 Koszalin | Q32 | clay | Maciej Matuszczyk | 7-5 1-6 10-6 |