| event | round | table | player one | result | player two |
| Grand Prix Boston 2001 | 9 | 10 | Sonne, Jonathan (1525) | Lost 1-2 | Parker, Brock (1781) |
| Grand Prix Oakland 2004 | 14 | 14 | Sonne, Jonathan (1806) | Lost 0-2 | Parker, Brock (1670) |
| Grand Prix Columbus 2004 | 15 | 6 | Sonne, Jonathan (1888) | Lost 0-2 | Parker, Brock (1824) |