Ishiguro, Satoshi (Chiba)
Current rating: 1495
Record: 7-7
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 48 | Lee, Jason [MYS] (1519) | Lost 1-2 | -191529 |
| 5standard | 218 | Ookawa, Akihiro (1530) | Lost 0-2 | -181511 |
| 6standard | 337 | Jitsukawa, Naofumi (1597) | Lost 1-2 | -161495 |
| 7standard | 351 | Kondo, Masahiro (1523) | Lost 0-2 | -181477 |
| 8standard | 312 | Hagimori, Kaku (1485) | Won 2-0 | +181495 |
| average opponent: 1531record: 1-4 | new rating: 1495 | |||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 93 | Matsuyama, Takuya (1481) | Lost 1-2 | -181482 |
| 2modern | 437 | Ichikawa, Yasura (1413) | Won 2-0 | +161498 |
| 3modern | 358 | Ikeda, Tomokazu (1449) | Won 2-1 | +181516 |
| 4modern | 193 | Matsunaga, Koutarou (1522) | Lost 1-2 | -181498 |
| 5modern | 394 | Tominaga, Shunpei (1498) | Won 2-0 | +181516 |
| 6modern | 275 | Amano, Makoto (1429) | Lost 0-2 | -201496 |
| 7modern | 368 | Murakami, Tatsuya (1336) | Won 2-0 | +151511 |
| 8modern | 263 | Nakamura, Junya (1638) | Won 2-0 | +201531 |
| 9modern | 175 | Yamada, Hiroki (1431) | Won 2-1 | +171548 |
| average opponent: 1466record: 6-3 | new rating: 1548 | |||