| event | round | table | player one | result | player two |
| Pro Tour Kobe 2004 | 7 | 68 | Arita, Ryuichi (1748) | Lost 0-2 | Kaji, Tomohiro (1794) |
| Pro Tour Columbus 2004 | 10 | 9 | Arita, Ryuichi (1756) | Won 2-0 | Kaji, Tomohiro (1849) |
| 2006 World Championship | 4 | 76 | Arita, Ryuichi (1848) | Draw 1-1 | Kaji, Tomohiro (1976) |