| event | round | table | player one | result | player two |
| Pro Tour Rome 1998 | 7 | 18 | O'Mahoney-Schwartz, Daniel (1536) | ID | Tsai, Tony (1588) |
| Pro Tour Barcelona 2001 | 10 | 70 | O'Mahoney-Schwartz, Daniel (1788) | Lost 0-2 | Tsai, Tony (1685) |
| Grand Prix Boston 2003 | 4 | 21 | O'Mahoney-Schwartz, Daniel (1677) | Won 2-0 | Tsai, Tony (1683) |