Ishii, Keisuke
Current rating: 1639
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 74 | Ishihara, Kosuke (1500) | Won 2-1 | +161590 |
| 2extended | 77 | Tani, Tokuo (1331) | Lost 1-2 | -221568 |
| 3extended | 86 | Nakayama, Masahiko (1504) | Lost 1-2 | -191549 |
| 4extended | 148 | Imai, Kimio (1575) | Won 2-1 | +181567 |
| 5extended | 120 | Nakamuta, Tsukasa (1500) | Won 2-0 | +171584 |
| 6extended | 108 | Naito, Kazuma (1550) | Won 2-1 | +171601 |
| 7extended | 76 | Abe, Ryou (1631) | Won 2-0 | +191620 |
| 8extended | 29 | Nakajima, Chikara (1684) | Won 2-1 | +191639 |
| top | average opponent: 1534record: 6-2 | new rating: 1639 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 159 | Maekawa, Takushi (1500) | Won 2-1 | +181554 |
| 3block | 73 | Adachi, Takatsugu (1557) | Won 2-1 | +181572 |
| 4block | 43 | Ikeda, Takashi (1552) | Won 2-0 | +171589 |
| 5block | 47 | Ito, Kenta (1536) | Won 2-1 | +171606 |
| 6block | 10 | Fujita, Kenichi (1708) | Won 2-0 | +201626 |
| 7block | 6 | Hoshino, Hiroaki (1646) | Lost 1-2 | -171609 |
| 8block | 36 | Shimada, Masatake (1660) | Lost 0-2 | -181591 |
| 9block | 80 | Koura, Masahiro (1609) | Lost 0-2 | -171574 |
| top | average opponent: 1596record: 5-3 | new rating: 1574 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 143 | Kojima, Kazuyoshi (1500) | Lost 0-2 | -181482 |
| 2extended | 195 | Konishi, Kazunobu (1482) | Won 2-1 | +181500 |
| 3extended | 271 | Korenori, Makoto (1500) | Lost 0-2 | -181482 |
| 4extended | 259 | Tsutsui, Toshinari (1482) | Won 2-0 | +181500 |
| 5extended | 228 | Kato, Ko (1499) | Won 2-0 | +181518 |
| 6extended | 168 | Yoshikawa, Yuusuke (1536) | Lost 1-2 | -181500 |
| 7extended | 185 | Sauchi, Toshihiro (1500) | Won 2-0 | +181518 |
| 8extended | 145 | Sato, Hisaumi (1516) | Won 2-0 | +181536 |
| top | average opponent: 1502record: 5-3 | new rating: 1536 | ||