| event | round | table | player one | result | player two |
| Grand Prix Miami 2013 | 14 | 2 | Costa, Matthew (2075) | ID | Larsen, Christoffer (1709) |
| Grand Prix Vancouver 2016 | 7 | 5 | Costa, Matthew (2021) | Won 2-0 | Larsen, Christoffer (1960) |
| Mythic Championship IV | 1 | 169 | Costa, Matthew (1941) | Won 2-1 | Larsen, Christoffer (2091) |