event | round | table | player one | result | player two |
Grand Prix New Jersey 2004 | 5 | 10 | Herberholz, Mark (1872) | Won 2-0 | Calcano, Christian (1572) |
Grand Prix Cleveland 2015 | 15 | 82 | Herberholz, Mark (1898) | Lost 0-2 | Calcano, Christian (1995) |
Grand Prix Detroit 2016 | 9 | 42 | Herberholz, Mark (1994) | Lost 0-2 | Calcano, Christian (1863) |