Ishibashi, Masaoki
Current rating: 1445
Record: 2-5-1
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 58 | Ono, Ippei (1556) | Won 2-1 | +191519 |
| 2block | 34 | Okumura, Katsuhiko (1479) | Lost 0-2 | -191500 |
| 3block | 89 | Suzuki, Mikito (1504) | Draw 1-1 | 01500 |
| 4block | 159 | Kimura, Ryou 2 (1499) | Lost 0-2 | -181482 |
| 5block | 180 | Imamura, Hirotaka (1445) | Lost 1-2 | -181464 |
| 6block | 173 | Takei, Tomoyuki (1404) | Won 2-0 | +171481 |
| 7block | 138 | Yoshino, Takeaki (1463) | Lost 1-2 | -191462 |
| 8block | 122 | Miyasaka, Takeshi (1478) | Lost 0-2 | -171445 |
| average opponent: 1478record: 2-5-1 | new rating: 1445 | |||