Hashimoto, Koki
Current rating: 1443
Record: 1-4
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 645 | Matsumoto, Shota (1500) | Lost 1-2 | -181482 |
| 2sealed | 647 | Imamura, Daisuke (1244) | Won 2-0 | +141496 |
| 3sealed | 804 | Kurihara, Mitsuaki (1571) | Lost 0-2 | -171479 |
| 4sealed | 978 | Urabe, Ryosuke (1463) | Lost 1-2 | -181461 |
| 5sealed | 1004 | Nitan, Naohiro (1460) | Lost 1-2 | -181443 |
| average opponent: 1448record: 1-4 | new rating: 1443 | |||