Piotr Grynkowski defeated Maciej Nowak 5-7 6-1 6-3 in the Poland F9 round of 32 on clay. The upset overturned the form book — Maciej Nowak came in leading the head-to-head 1–0. Piotr Grynkowski claimed a first win over Maciej Nowak in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-10 | Poland F1 | Q32 | clay | Maciej Nowak | 6-4 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.