event | round | table | player one | result | player two |
Grand Prix Kansas City 2003 | 7 | 7 | Heiss, Nathan (1769) | Won 2-1 | Sonne, Jonathan (1852) |
Grand Prix Oakland 2004 | 7 | 24 | Heiss, Nathan (1777) | Won 2-1 | Sonne, Jonathan (1849) |
Grand Prix Columbus 2004 | 14 | 12 | Heiss, Nathan (1789) | Lost 0-2 | Sonne, Jonathan (1871) |