Shimura, Seiji
Current rating: 1444
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 538 | Abe, Kouya (1384) | Won 2-0 | +161491 |
| 2sealed | 337 | Kashima, Akihiro (1678) | Lost 1-2 | -151476 |
| 3sealed | 756 | Kubomura, Masaaki (1375) | Won 2-1 | +171493 |
| 4sealed | 666 | Sinkis, Peter (1570) | Lost 1-2 | -171476 |
| 5sealed | 689 | Wang, Shensheng (1643) | Lost 0-2 | -151461 |
| 6sealed | 738 | Matsuda, Kenji (1491) | Lost 0-2 | -171444 |
| top | average opponent: 1523record: 2-4 | new rating: 1444 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 467 | Ichijo, Kazuto (1289) | Won 2-1 | +141512 |
| 2sealed | 169 | Kitsunezuka, Masanori (1543) | Lost 1-2 | -181494 |
| 3sealed | 875 | Nagata, Kouki (1501) | Lost 0-2 | -171477 |
| 4sealed | 915 | Ashizawa, Yoshisato (1410) | Won 2-0 | +161493 |
| 5sealed | 552 | Iwamura, Ryouichi (1462) | Lost 0-2 | -181475 |
| top | average opponent: 1441record: 2-3 | new rating: 1475 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2340 | Toda, Ryunosuke (1500) | Won 2-0 | +181518 |
| 2sealed | 2035 | Yoshino, Satoshi (1384) | Lost 0-2 | -201498 |
| top | average opponent: 1442record: 1-1 | new rating: 1498 | ||