event | round | table | player one | result | player two |
Grand Prix Washington DC 1999 | 5 | 27 | Keffer, Philip (1554) | Won 0-0 | Humpherys, David (1789) |
Grand Prix Philadelphia 2000 | 11 | 27 | Keffer, Philip (1619) | Lost 0-0 | Humpherys, David (1661) |
Pro Tour Tokyo 2001 | 14 | 28 | Keffer, Philip (1662) | Won 2-1 | Humpherys, David (1868) |