Arimura, Norihiko
Current rating: 1332
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1401 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 415 | Deguchi, Koya (1500) | Lost 1-2 | -171384 |
| 2sealed | 720 | Munakata, Shohei (1488) | Lost 1-2 | -161368 |
| 3sealed | 1054 | Kaneko, Hiroto (1349) | Lost 1-2 | -181350 |
| 4sealed | 1045 | Furukawa, Takuto (1359) | Lost 1-2 | -181332 |
| top | average opponent: 1424record: 0-4 | new rating: 1332 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 497 | Aoi, Masashi (1449) | Lost 0-2 | -181434 |
| 2sealed | 730 | Tuboi, Takuto (1428) | Won 2-1 | +181452 |
| 3sealed | 628 | Takada, Kazuaki (1499) | Lost 0-2 | -171435 |
| 4sealed | 1077 | Sato, Ryuji (1485) | Lost 0-2 | -171418 |
| 5sealed | 1010 | Homma, Akira (1482) | Lost 0-2 | -171401 |
| top | average opponent: 1469record: 1-4 | new rating: 1401 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 302 | Itakura, Kenichi (1489) | Won 2-1 | +181518 |
| 2standard | 411 | Nakagawa, Tango (1577) | Lost 0-2 | -171501 |
| 3standard | 777 | Isurugi, Hideyuki (1604) | Lost 0-2 | -161485 |
| 4standard | 1113 | Sugiura, Hiroki (1598) | Lost 1-2 | -161469 |
| 5standard | 1203 | Banno, Kunihiko (1527) | Lost 0-2 | -171452 |
| top | average opponent: 1559record: 1-4 | new rating: 1452 | ||