Ishii, Kazuma
Current rating: 1483
Record: 7-8-2
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 617 | Imura, Satoshi (1521) | Won 2-0 | +191518 |
| 2legacy | 637 | Tate, Kazushi (1518) | Draw 1-1 | 01518 |
| 3legacy | 719 | Shirai, Yuuki (1586) | Lost 1-2 | -171501 |
| 4legacy | 813 | Oota, Kazuki (1502) | Lost 1-2 | -181483 |
| top | average opponent: 1532record: 1-2-1 | new rating: 1483 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1049 | Fujimoto, Tomoya (1561) | Lost 0-2 | -171502 |
| 2modern | 1162 | Losh, Mason (1371) | Draw 1-1 | -31499 |
| top | average opponent: 1466record: 0-1-1 | new rating: 1499 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 411 | Tanahashi, Hirofumi (1431) | Lost 1-2 | -191498 |
| 2standard | 471 | Abe, Yuuta (1471) | Won 2-1 | +171515 |
| 3standard | 377 | Kenji K., (1501) | Won 2-1 | +181533 |
| 4standard | 321 | Tashiro, Kouichi (1798) | Lost 0-2 | -131520 |
| 5standard | 578 | Doi, Kazumine (1497) | Won 2-1 | +171537 |
| 6standard | 423 | Yamamoto, Junichi (1517) | Lost 1-2 | -181519 |
| top | average opponent: 1536record: 3-3 | new rating: 1519 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 182 | Horiuti, Masahiro (1500) | Won 2-0 | +181518 |
| 2modern | 367 | Shimizu, Souichirou (1454) | Lost 0-2 | -191499 |
| 3modern | 296 | Oda, Naoki (1454) | Won 2-0 | +171516 |
| 4modern | 363 | Nakamura, Masato (1496) | Won 2-1 | +181534 |
| 5modern | 168 | Okada, Takuya (1632) | Lost 0-2 | -171517 |
| top | average opponent: 1507record: 3-2 | new rating: 1517 | ||