| event | round | table | player one | result | player two |
| Pro Tour New Orleans 2001 | Q | Humpherys, David (2027) | Won 3-2 | Jonsson, Anton (1934) | |
| Pro Tour San Diego 2002 Masters | 1 | 6 | Humpherys, David (1948) | Won 0-0 | Jonsson, Anton (1948) |
| Pro Tour Houston 2002 Masters | 2 | 8 | Humpherys, David (1955) | Lost 0-0 | Jonsson, Anton (1999) |
| Pro Tour Venice 2003 | 10 | 13 | Humpherys, David (1856) | Lost 0-2 | Jonsson, Anton (2070) |