Ishikawa, Daisuke
Current rating: 1406
Record: 1-6
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 560 | Ikeda, Daichi (1463) | Won 2-0 | +171517 |
| 2modern | 432 | Yoshimoto, Masanobu (1631) | Lost 0-2 | -161501 |
| 3modern | 870 | Takahashi, Toshirou (1329) | Lost 0-2 | -211480 |
| 4modern | 1031 | Philippczyck, Fabian (1507) | Lost 0-2 | -171463 |
| 5modern | 1057 | Sugawa, Yousuke (1443) | Lost 0-2 | -191444 |
| 6modern | 949 | Kikuchi, Shou (1378) | Lost 0-2 | -191425 |
| 7modern | 831 | Shimoyama, Kazuma (1379) | Lost 0-2 | -191406 |
| average opponent: 1447record: 1-6 | new rating: 1406 | |||