event | round | table | player one | result | player two |
Grand Prix Okayama 2004 | 14 | 16 | Ishida, Itaru (2069) | Lost 0-2 | Shiki, Kazumasa (1774) |
Grand Prix Okayama 2004 | F | Ishida, Itaru (2075) | Lost 1-2 | Shiki, Kazumasa (1832) | |
Grand Prix Kitakyushu 2005 | 5 | 13 | Ishida, Itaru (2016) | Won 2-0 | Shiki, Kazumasa (1889) |