| event | round | table | player one | result | player two |
| Grand Prix Kyoto 2017 | 13 | 5 | Rountree, Collin (1993) | Lost 1-2 | Nass, Matthew (1962) |
| Grand Prix Denver 2017 | 7 | 5 | Rountree, Collin (1961) | Won 2-0 | Nass, Matthew (2079) |
| Mythic Championship VI | 11 | 13 | Rountree, Collin (1983) | Lost 0-2 | Nass, Matthew (2044) |