Tanaka, Akira8259
Current rating: 1530
Record: 9-9
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 239 | Matsuda, Kenji (1538) | Won 2-1 | +201468 |
| 4sealed | 10 | Oikawa, Hiroaki (1492) | Lost 1-2 | -181450 |
| 5sealed | 198 | Shimizu, Toshiki (1873) | Lost 0-2 | -101440 |
| 6sealed | 537 | Yanagawa, Tomoyuki (1525) | Won 2-1 | +191459 |
| 7sealed | 442 | Morinaka, Fuyuki (1625) | Won 2-0 | +211480 |
| 8sealed | 333 | Iwaide, Yoshitaka (1574) | Won 2-1 | +201500 |
| 9sealed | 118 | Sugimori, Daisuke (1583) | Lost 0-2 | -171483 |
| 10draft | 640 | Onoda, Kenji (1660) | Won 2-0 | +221505 |
| 11draft | 585 | Kitazawa, Kentarou (1667) | Lost 1-2 | -151490 |
| 12draft | 637 | Motegi, Ryouta (1504) | Won 2-0 | +181508 |
| 13draft | 629 | Kondo, Fumiya (1574) | Lost 0-2 | -171491 |
| 14draft | 698 | Sasaki, Shimon (1567) | Won 2-0 | +191510 |
| 15draft | 669 | Haritani, Ryosuke (1579) | Won 2-0 | +201530 |
| average opponent: 1597record: 8-5 | new rating: 1530 | |||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 536 | Itazu, Boram (1413) | Lost 1-2 | -201480 |
| 4legacy | 590 | Saito, Tomoe (1440) | Won 2-0 | +181498 |
| 5legacy | 173 | Maeda, Tatsuyuki (1542) | Lost 1-2 | -181480 |
| 6legacy | 621 | Oshikawa, Akira (1682) | Lost 1-2 | -141466 |
| 7legacy | 681 | Sano, Keisuke (1475) | Lost 1-2 | -181448 |
| average opponent: 1510record: 1-4 | new rating: 1448 | |||