Maehara, Kouichi
Current rating: 1525
| Grand Prix Kobe 2017 (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 148 | Yamanaka, Yuki (1453) | Lost 0-2 | -201533 |
| 2modern | 803 | Ishiwata, Ryohei (1427) | Won 2-1 | +161549 |
| 3modern | 807 | Shibata, Takahiro (1473) | Won 2-0 | +171566 |
| 4modern | 507 | Mihara, Yuki (1513) | Lost 1-2 | -191547 |
| 5modern | 834 | Kurokawa, Shutaro (1479) | Won 2-0 | +161563 |
| 6modern | 790 | Ishikawa, Kenji (1476) | Lost 0-2 | -191544 |
| 7modern | 753 | Toba, Syuuji (1500) | Lost 1-2 | -191525 |
| top | average opponent: 1474record: 3-4 | new rating: 1525 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2306 | Taniguchi, Hitoshi (1500) | Won 2-0 | +181535 |
| 2sealed | 2006 | Honma, Rie (1501) | Lost 0-2 | -191516 |
| 3sealed | 2232 | Matuda, Amane (1501) | Lost 1-2 | -181498 |
| 4sealed | 2338 | Yago, Hironobu (1481) | Won 2-0 | +181516 |
| 5sealed | 2295 | Tanaka, Kento (1488) | Won 2-0 | +171533 |
| 6sealed | 2167 | Takimura, Yuya (1529) | Won 2-0 | +181551 |
| 7sealed | 2127 | Kobayashi, Yuta (1544) | Won 2-1 | +181569 |
| 8sealed | 2113 | Sugimoto, Hiroaki (1673) | Lost 0-2 | -161553 |
| top | average opponent: 1527record: 5-3 | new rating: 1553 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 130 | Yamamoto, Masaki (1500) | Won 2-0 | +181500 |
| 2legacy | 159 | Horie, Youhei (1410) | Won 2-1 | +161516 |
| 3legacy | 196 | Hayata, Akira (1514) | Lost 1-2 | -181498 |
| 4legacy | 211 | Imamura, Keisuke (1515) | Won 2-0 | +191517 |
| 5legacy | 120 | Satou, Yuji (1458) | Won 2-1 | +161533 |
| 6legacy | 42 | Tamaki, Shihiro (1558) | Lost 0-2 | -171516 |
| 7legacy | 166 | Nobori, Hiroumi (1544) | Won 2-1 | +181534 |
| 8legacy | 108 | Suzuki, Takayuki (1569) | Lost 1-2 | -171517 |
| top | average opponent: 1509record: 5-3 | new rating: 1517 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 896 | Arai, Yuma (1500) | Won 2-0 | +181518 |
| 2modern | 964 | Ishino, Katsunori (1479) | Won 2-0 | +171535 |
| 3modern | 736 | Hayashi, Masashi (1534) | Won 2-1 | +181553 |
| 4modern | 794 | Ou, Kaitou (1598) | Lost 1-2 | -171536 |
| 5modern | 891 | Mizuno, Nobuyoshi (1607) | Lost 1-2 | -171519 |
| 6modern | 879 | Sano, Kouta (1462) | Lost 0-2 | -191500 |
| 7modern | 988 | Asai, Toshiharu (1456) | Lost 0-2 | -181482 |
| top | average opponent: 1519record: 3-4 | new rating: 1482 | ||