Ishii, Suguru
Current rating: 1437
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 333 | Tanaka, Hisaya (1667) | Lost 0-2 | -151454 |
| 2legacy | 474 | Shirasaka, Shingo (1421) | Won 2-0 | +181472 |
| 3legacy | 536 | Tan, Richmond (1547) | Lost 0-2 | -171455 |
| 4legacy | 451 | Agyekum, Paul (1433) | Lost 0-2 | -181437 |
| top | average opponent: 1517record: 1-3 | new rating: 1437 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 733 | Hagihara, Masaki (1500) | Won 2-1 | +191484 |
| 2legacy | 689 | Suzuki, Keisuke (1499) | Won 2-1 | +181502 |
| 3legacy | 526 | Oohashi, Toshiya (1605) | Lost 0-2 | -161486 |
| 4legacy | 650 | Yabe, Syouta (1517) | Lost 0-2 | -171469 |
| 5legacy | 788 | Brown, Christine (1460) | Won 2-1 | +171486 |
| 6legacy | 775 | Satake, Yuuta (1514) | Lost 1-2 | -171469 |
| top | average opponent: 1516record: 3-3 | new rating: 1469 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 321 | Komachi, Akinori (1500) | Draw 1-1 | 01500 |
| 2sealed | 278 | Kawashima, Hajime (1596) | Lost 0-2 | -161484 |
| 3sealed | 424 | Suzuki, Tatsuya (1453) | Lost 1-2 | -191465 |
| top | average opponent: 1516record: 0-2-1 | new rating: 1465 | ||