| event | round | table | player one | result | player two |
| Grand Prix Richmond 2017 | 7 | 193 | Kowalski, Grzegorz (1969) | Won 2-1 | Kvartek, Chris (1912) |
| Mythic Championship VII | 3 | 8 | Kowalski, Grzegorz (2210) | Lost 0-2 | Kvartek, Chris (2018) |
| 2020 Mythic Invitational | 11 | 4 | Kowalski, Grzegorz (2216) | Won 2-0 | Kvartek, Chris (2040) |