| event | round | table | player one | result | player two |
| Grand Prix Sendai 2001 | 4 | 66 | Kumagai, Shinichi (1518) | Lost 0-2 | Nakamura, Satoshi (1592) |
| Grand Prix Sapporo 2002 | 14 | 19 | Kumagai, Shinichi (1713) | ID | Nakamura, Satoshi (1753) |
| Grand Prix Sapporo 2002 | S | Kumagai, Shinichi (1731) | Won 2-1 | Nakamura, Satoshi (1769) |