event | round | table | player one | result | player two |
Grand Prix Minneapolis 2009 | 12 | 2 | Turtenwald, Owen (1877) | Lost 0-2 | Sperling, Matthew (1911) |
Grand Prix Minneapolis 2009 | Q | Turtenwald, Owen (1905) | Lost 1-2 | Sperling, Matthew (1941) | |
Grand Prix Albuquerque 2013 | 11 | 6 | Turtenwald, Owen (2118) | Lost 0-2 | Sperling, Matthew (2068) |
Grand Prix Vancouver 2014 | 8 | 4 | Turtenwald, Owen (2194) | Lost 1-2 | Sperling, Matthew (2136) |