Ishibashi, Naotaka
Current rating: 1483
Record: 1-2-1
| Grand Prix Yokohama 2012 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 206 | Sugimura, Yoshiyasu (1521) | Lost 0-2 | -171465 |
| 2modern | 432 | Koike, manabu (1482) | Draw 1-1 | 01465 |
| 3modern | 593 | Morita, Hiroki (1482) | Won 2-1 | +181483 |
| average opponent: 1495record: 1-1-1 | new rating: 1483 | |||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 72 | Hattori, Taiki (1500) | Lost 0-2 | -181482 |
| record: 0-1 | new rating: 1482 | |||