Tanaka, Kenichirou
Current rating: 1497
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 576 | Fujii, Kohei (1563) | Draw 1-1 | 01542 |
| 2sealed | 595 | Saito, Shosuke (1502) | Won 2-0 | +181560 |
| 3sealed | 523 | Yoshihara, Shinji (1446) | Lost 0-2 | -201540 |
| 4sealed | 779 | Gojo, Toshiya (1498) | Lost 1-2 | -191521 |
| 5sealed | 915 | Ninohira, Yuuya (1363) | Lost 0-2 | -211500 |
| 6sealed | 850 | Chiun-Chine, Cheo (1441) | Won 2-0 | +171517 |
| 7sealed | 677 | Taniwaki, Hikaru (1398) | Lost 0-2 | -201497 |
| top | average opponent: 1459record: 2-4-1 | new rating: 1497 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Ooshima, Kazuyasu (1500) | Lost 0-2 | -191562 |
| 2sealed | 426 | Nishitani, Tutaka (1480) | Lost 0-2 | -201542 |
| top | average opponent: 1490record: 0-2 | new rating: 1542 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 244 | Iyota, Tatsuya (1500) | Won 2-0 | +181517 |
| 2block | 159 | Sugaya, Akio (1560) | Won 2-1 | +191536 |
| 3block | 15 | Chang, Chih-Hsiang (1739) | Lost 0-2 | -141522 |
| 4block | 144 | Ehara, Yoshihide (1549) | Won 2-1 | +181540 |
| 5block | 131 | Abe, Genta (1560) | Won 2-0 | +191559 |
| 6block | 49 | Kawate, Junpei (1614) | Lost 1-2 | -171542 |
| 7block | 97 | Kurashima, Kazuki (1578) | Won 2-1 | +181560 |
| 8block | 85 | Sato, Rei (1710) | Won 2-1 | +211581 |
| 9block | 39 | Nakajima, Chikara (1586) | ID | 01581 |
| top | average opponent: 1600record: 6-2-1 | new rating: 1581 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 213 | Kawamura, Nobuyuki (1500) | Lost 0-2 | -181482 |
| 2extended | 298 | Sasaki, Shou (1482) | Lost 1-2 | -181464 |
| 3extended | 331 | Azuma, Wakato (1464) | Won 2-0 | +181482 |
| 4extended | 269 | Nishioka, Junichiro (1482) | Lost 0-2 | -181464 |
| 5extended | 287 | Yamada, Kazuto (1464) | Won 2-0 | +181482 |
| 6extended | 200 | Kunishi, Hiroko (1465) | Won 2-0 | +181500 |
| 7extended | 195 | Iwasaki, Hironori (1500) | Won 2-0 | +181518 |
| 8extended | 132 | Motomura, Shigeru (1499) | Lost 1-2 | -191499 |
| top | average opponent: 1482record: 4-4 | new rating: 1499 | ||