Arai, Ryou9421
Current rating: 1564
Record: 12-9
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 276 | Co, Mark Anthony (1636) | Lost 1-2 | -171546 |
| 2sealed | 714 | Li, Mofei (1482) | Won 2-0 | +171563 |
| 3sealed | 821 | Arita, Kento (1780) | Won 2-1 | +221585 |
| 4sealed | 312 | Tokeshi, Hiroki (1403) | Lost 1-2 | -211564 |
| top | average opponent: 1575record: 2-2 | new rating: 1564 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 335 | Tsukada, Hiroshi (1487) | Won 2-1 | +171576 |
| 4modern | 256 | Maenosono, Kenta (1626) | Lost 1-2 | -171559 |
| 5modern | 227 | Kitagawa, Hiroyuki (1582) | Won 2-0 | +181577 |
| 6modern | 240 | Takagishi, Hidefumi (1534) | Won 2-1 | +171594 |
| 7modern | 138 | Qin, Xiaoqi (1763) | Lost 0-2 | -151579 |
| 8modern | 263 | Miyazono, Takeshi (1680) | Lost 1-2 | -161563 |
| top | average opponent: 1612record: 3-3 | new rating: 1563 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 661 | Shinya, Takeshi (1454) | Won 2-0 | +171534 |
| 2sealed | 484 | Sekine, Yoshinori (1466) | Lost 1-2 | -191515 |
| 3sealed | 810 | Wanibuchi, Kouji (1384) | Won 2-1 | +151530 |
| 4sealed | 289 | Nakao, Motohiko (1676) | Won 2-1 | +211551 |
| 5sealed | 210 | Minami, Masashi (1685) | Won 2-0 | +211572 |
| 6sealed | 173 | Salvador Arnal, Guillem (1896) | Lost 1-2 | -131559 |
| 7sealed | 456 | Yamamoto, Naoto (1475) | Won 2-1 | +171576 |
| 8sealed | 268 | Xu, Siying (1648) | Lost 0-2 | -171559 |
| top | average opponent: 1585record: 5-3 | new rating: 1559 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2114 | Tsutsumi, Masaki (1500) | Won 2-0 | +181518 |
| 2sealed | 2245 | Nakatani, Takashi (1480) | Won 2-0 | +171535 |
| 3sealed | 2063 | Yoshida, Koki (1532) | Lost 0-2 | -181517 |
| top | average opponent: 1504record: 2-1 | new rating: 1517 | ||