Piotr Grynkowski defeated Jiri Barnat 6-4 6-4 in the M15 Milovice 1 q16 on hard. Piotr Grynkowski extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-08-09 | M25 Lodz 1 | R32 | clay | Jiri Barnat | 6-3 6-3 |
| 2020-02-24 | M15 Trnava 1 | Q32 | hard | Piotr Grynkowski | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.