Hirokawa, Tatsuya 1725
Current rating: 1463
Record: 6-8
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Ooi, Yuichi (1401) | Lost 0-2 | -201463 |
| top | record: 0-1 | new rating: 1463 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Arai, Ikki (1264) | Lost 1-2 | -231501 |
| 2sealed | 548 | Miyanaga, Yukihiro (1482) | Lost 1-2 | -181483 |
| 3sealed | 1103 | Kumano, Ryosuke (1421) | Won 2-1 | +171500 |
| 4sealed | 971 | Handa, Takuya (1538) | Lost 0-2 | -171483 |
| top | average opponent: 1426record: 1-3 | new rating: 1483 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 352 | Sugisawa, Tsuyoshi (1675) | Lost 0-2 | -161524 |
| top | record: 0-1 | new rating: 1524 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 498 | Takada, Naoki (1450) | Lost 1-2 | -191481 |
| 2sealed | 969 | Asai, Shin (1483) | Won 2-0 | +181499 |
| 3sealed | 977 | Mizoguchi, Yuya (1525) | Lost 0-2 | -171482 |
| 4sealed | 784 | Tanaka, Takahiro (1506) | Won 2-0 | +181500 |
| 5sealed | 730 | Tanaka, Yuki (1439) | Won 2-0 | +171517 |
| 6sealed | 641 | Arai, Makoto (1606) | Won 2-0 | +201537 |
| 7sealed | 298 | Moriya, Daisuke (1680) | Won 2-1 | +201557 |
| 8sealed | 299 | Ogata, Kai (1580) | Lost 0-2 | -171540 |
| top | average opponent: 1534record: 5-3 | new rating: 1540 | ||