Tajima, Keiichi
Current rating: 1543
Record: 5-3
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 618 | Kusunoki, Yuki (1647) | Won 2-1 | +211521 |
| 2sealed | 304 | Nobushita, Jun (1531) | Lost 1-2 | -181503 |
| 3sealed | 880 | Matsuzaki, Akira (1551) | Won 2-1 | +191522 |
| 4sealed | 571 | Bergelin, Johan (1533) | Won 2-0 | +181540 |
| 5sealed | 262 | Nagao, Naoki (1619) | Lost 1-2 | -171523 |
| 6sealed | 423 | Ogura, Takamasa5329 (1388) | Lost 0-2 | -201503 |
| 7sealed | 613 | Shibata, Toru (1637) | Won 2-0 | +201523 |
| 8sealed | 414 | Kawaguchi, Takashi (1640) | Won 2-0 | +201543 |
| average opponent: 1568record: 5-3 | new rating: 1543 | |||