Ookawa, Takurou
Current rating: 1506
Record: 3-3
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 478 | Mizutani, Yosuke (1666) | Won 2-1 | +211521 |
| 2sealed | 364 | Toyoda, Ryosuke (1382) | Won 2-1 | +151536 |
| 3sealed | 348 | Takahashi, Kei (1628) | Lost 1-2 | -161520 |
| 4sealed | 568 | Hirano, Satohiro (1611) | Won 2-1 | +201540 |
| 5sealed | 292 | Kubota, Muneaki (1680) | Lost 1-2 | -161524 |
| 6sealed | 542 | Takeda, Takashi (1525) | Lost 1-2 | -181506 |
| average opponent: 1582record: 3-3 | new rating: 1506 | |||