event | round | table | player one | result | player two |
Grand Prix Phoenix 2000 | 12 | 23 | O'Mahoney-Schwartz, Steven (1729) | Won 2-0 | Tamblyn, Mitchell (1517) |
Grand Prix Philadelphia 2008 | 11 | 44 | O'Mahoney-Schwartz, Steven (1761) | Lost 1-2 | Tamblyn, Mitchell (1688) |