| event | round | table | player one | result | player two |
| 2018 World Championship | 1 | 6 | Kowalski, Grzegorz (2037) | Won 2-1 | Yukuhiro, Ken (2185) |
| Mythic Championship IV | 10 | 136 | Kowalski, Grzegorz (2068) | Won 2-0 | Yukuhiro, Ken (1983) |
| 2020 Mythic Invitational | U1 | Kowalski, Grzegorz (2229) | Won 2-0 | Yukuhiro, Ken (2118) |