Ishii, Tomohiro
Current rating: 1518
Record: 4-3
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 712 | Matsushima, Naoki (1235) | Won 2-1 | +131513 |
| 2modern | 444 | Ohta, Masataka (1559) | Won 2-1 | +191532 |
| 3modern | 537 | Fukudome, Yuu (1757) | Won 2-1 | +221554 |
| 4modern | 224 | Shindo, Yuto (1569) | Lost 1-2 | -181536 |
| 5modern | 516 | Masaki, Toshihiko (1544) | Won 2-0 | +191555 |
| 6modern | 321 | Hashimoto, Arata (1519) | Lost 1-2 | -191536 |
| 7modern | 248 | Paik, Inyoung (1539) | Lost 0-2 | -181518 |
| average opponent: 1532record: 4-3 | new rating: 1518 | |||