Ishizu, Masahiko
Current rating: 1441
Record: 4-8-1
| Grand Prix Kobe 2014 (modern) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 711 | Iba, Tomoki (1500) | Won 2-1 | +191490 |
| 2modern | 786 | Kumagai, Riku (1730) | Lost 0-2 | -141476 |
| 3modern | 1082 | Hirooka, Toshiki (1566) | Draw 0-0 | +21478 |
| 4modern | 1048 | Fujii, Toshikazu (1508) | Lost 0-2 | -181460 |
| 5modern | 1127 | Ooyama, Yuusuke (1481) | Lost 0-2 | -171443 |
| 6modern | 1108 | Furuya, Satoshi (1335) | Won 2-1 | +161459 |
| 7modern | 1022 | Sasaki, Tsutomu (1452) | Lost 1-2 | -181441 |
| average opponent: 1510record: 2-4-1 | new rating: 1441 | |||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 293 | Tsuchida, Tatsuaki (1500) | Won 2-0 | +181518 |
| 2sealed | 83 | Tachibana, Takahiro (1540) | Won 2-0 | +181536 |
| 3sealed | 70 | Pham, Daniel (1871) | Lost 0-2 | -121524 |
| 4sealed | 302 | Itou, Tomoya (1545) | Lost 0-2 | -171507 |
| 5sealed | 380 | Ouchi, Akimasa (1554) | Lost 1-2 | -171490 |
| 6sealed | 362 | Takamizawa, Shigeyoshi (1485) | Lost 0-2 | -191471 |
| average opponent: 1582record: 2-4 | new rating: 1471 | |||