| event | round | table | player one | result | player two |
| Grand Prix Kyoto 2003 | 11 | 30 | Katayama, Takahiro (1646) | Lost 0-2 | Tanaka, Hisaya (1746) |
| Grand Prix Okayama 2004 | 8 | 14 | Katayama, Takahiro (1592) | Lost 1-2 | Tanaka, Hisaya (1761) |
| Grand Prix Niigata 2005 | 12 | 7 | Katayama, Takahiro (1785) | Draw 1-1 | Tanaka, Hisaya (1823) |
| Grand Prix Kobe 2009 | 4 | 8 | Katayama, Takahiro (1762) | Won 2-0 | Tanaka, Hisaya (1685) |