event | round | table | player one | result | player two |
Grand Prix Okayama 2004 | 10 | 25 | Ibamoto, Masami (1743) | Draw 1-1 | Nakamura, Shuhei (1864) |
Grand Prix Sendai 2004 | 11 | 21 | Ibamoto, Masami (1746) | Won 2-1 | Nakamura, Shuhei (1871) |
Grand Prix Kitakyushu 2005 | 4 | 28 | Ibamoto, Masami (1635) | Won 2-1 | Nakamura, Shuhei (1983) |
Pro Tour Prague 2006 | 9 | 25 | Ibamoto, Masami (1743) | Lost 0-2 | Nakamura, Shuhei (1989) |