| event | round | table | player one | result | player two |
| Grand Prix Philadelphia 2000 | 14 | 8 | Leiher, Peter (1850) | Lost 0-0 | Humpherys, David (1717) |
| Pro Tour Los Angeles 2001 | 4 | 102 | Leiher, Peter (1837) | Lost 0-2 | Humpherys, David (1923) |
| Grand Prix Las Vegas 2001 | 9 | 22 | Leiher, Peter (1858) | Lost 1-2 | Humpherys, David (1986) |
| Pro Tour San Diego 2002 | 1 | 156 | Leiher, Peter (1908) | Lost 0-2 | Humpherys, David (2036) |