| event | round | table | player one | result | player two |
| Grand Prix Krakow 2015 | 12 | 6 | Kowalski, Grzegorz (2001) | Draw 1-1 | Hayne, Alexander (1941) |
| Grand Prix Prague 2016 | 10 | 8 | Kowalski, Grzegorz (2117) | Lost 1-2 | Hayne, Alexander (2069) |
| Pro Tour Ixalan | 4 | 5 | Kowalski, Grzegorz (2024) | Won 2-1 | Hayne, Alexander (1981) |