event | round | table | player one | result | player two |
Grand Prix Minneapolis 2005 | 6 | 27 | Herberholz, Mark (1784) | Won 2-0 | Weitz, Benjamin (1553) |
Grand Prix Toronto 2015 | 11 | 4 | Herberholz, Mark (1979) | Lost 0-2 | Weitz, Benjamin (1837) |
Grand Prix Los Angeles 2018 | 7 | 173 | Herberholz, Mark (1877) | Lost 0-2 | Weitz, Benjamin (1837) |