Kosho, Tomoya
Current rating: 1557
Record: 32-32
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 96 | Matsuzaki, Ryuta (1599) | Won 2-1 | +181581 |
| 4pioneer | 70 | Watanabe, Yuuki (1471) | Won 2-1 | +161597 |
| 5pioneer | 1 | Takaoka, Yusuke (1500) | Lost 0-2 | -191578 |
| 6pioneer | 85 | Uzuki, Yushi (1492) | Lost 0-2 | -201558 |
| 7pioneer | 245 | Soejima, Naoki (1551) | Won 2-0 | +181576 |
| 8pioneer | 236 | Arai, Makoto (1535) | Lost 0-2 | -191557 |
| top | average opponent: 1525record: 3-3 | new rating: 1557 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 126 | Abe, Michio (1480) | Lost 0-2 | -201561 |
| 4standard | 505 | Ichikawa, Norikazu (1669) | Won 2-0 | +201581 |
| 5standard | 177 | Nishi, Hyuma (1665) | Lost 0-2 | -161565 |
| 6standard | 512 | Hamaguchi, Shoji (1537) | Won 2-0 | +171582 |
| 7standard | 331 | Tsuge, Kyohei (1507) | Lost 0-2 | -191563 |
| top | average opponent: 1572record: 2-3 | new rating: 1563 | ||
| Grand Prix Taipei 2019 (WAR standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 151 | Qian, Zhengrui (1467) | Won 2-1 | +171528 |
| 4standard | 105 | Ju, Yaqiong (1665) | Lost 1-2 | -151513 |
| 5standard | 168 | Hong, Weihao (1536) | Won 2-1 | +181531 |
| 6standard | 55 | Yoshimura, Wataru (1550) | Won 2-1 | +191550 |
| 7standard | 85 | Chang, Taocheng (1589) | Won 2-0 | +181568 |
| 8standard | 13 | Saito, Tomoharu (2040) | Lost 0-2 | -101558 |
| 9standard | 93 | See, Spencer (1536) | Lost 0-2 | -181540 |
| 10standard | 75 | To, Chun Him (1598) | Won 2-1 | +191559 |
| 11standard | 88 | Lin, Victor (1555) | Won 2-0 | +181577 |
| 12standard | 63 | Teeranoraset, Tanabordee (1583) | Lost 0-2 | -181559 |
| 13standard | 58 | Jung, Yong Hyuk (1629) | Lost 1-2 | -171542 |
| 14standard | 70 | Shiohata, Ryosuke (1566) | Won 2-0 | +191561 |
| 15standard | 54 | Ogasawara, Tomoaki (1688) | Won 2-1 | +201581 |
| top | average opponent: 1616record: 8-5 | new rating: 1581 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 138 | Yokomizo, Gouki (1428) | Won 2-1 | +151565 |
| 4modern | 41 | Honda, Atsuo (1688) | Lost 1-2 | -151550 |
| 5modern | 398 | Kitajima, Shunsuke (1527) | Lost 1-2 | -191531 |
| 6modern | 489 | Kimura, Daichi (1411) | Lost 0-2 | -201511 |
| top | average opponent: 1514record: 1-3 | new rating: 1511 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 251 | Naganawa, Satoshi (1492) | Won 2-0 | +171576 |
| 4standard | 21 | Nakamura, Satoshi0186 (1739) | Lost 1-2 | -161560 |
| 5standard | 368 | Hirosawa, Yuuta (1975) | Lost 0-2 | -101550 |
| top | average opponent: 1735record: 1-2 | new rating: 1550 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 316 | Park, Seung-Keun (1484) | Lost 0-2 | -191559 |
| top | record: 0-1 | new rating: 1559 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 51 | Tonami, Kouhei (1534) | Won 2-1 | +171592 |
| 4legacy | 106 | Kyan, Morihito (1620) | Lost 0-2 | -171575 |
| 5legacy | 268 | Mori, Takeshi (1707) | Won 2-0 | +201595 |
| 6legacy | 134 | Harada, Dampei (1640) | Won 2-0 | +191614 |
| 7legacy | 35 | Hasegawa, Kay (1660) | Lost 1-2 | -171597 |
| 8legacy | 154 | Seo, Noboru (1581) | Lost 0-2 | -191578 |
| top | average opponent: 1624record: 3-3 | new rating: 1578 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1636 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 326 | Mori, Yuta (1446) | Lost 0-2 | -211615 |
| 4sealed | 278 | Tomita, Kouki (1540) | Lost 1-2 | -201595 |
| 5sealed | 607 | Adachi, Takaaki (1467) | Lost 0-2 | -201575 |
| top | average opponent: 1485record: 0-3 | new rating: 1575 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 602 | Inagaki, Yukihiro (1618) | Won 2-1 | +211488 |
| 4modern | 115 | Nitta, Toshiya (1510) | Won 2-1 | +181506 |
| 5modern | 136 | Kimura, Ryou (1537) | Won 2-0 | +191525 |
| 6modern | 29 | Saitou, Ryuuga (1999) | Won 2-1 | +261551 |
| 7modern | 5 | Yanagidate, Ikumi (1606) | Won 2-0 | +191570 |
| 8modern | 6 | Liu, Yuchen (2073) | Won 2-0 | +261596 |
| 9modern | 1 | Noine, Kazuhiro (1761) | Lost 1-2 | -151581 |
| 10modern | 19 | Kimura, Shigeki (1787) | Lost 1-2 | -141567 |
| 11modern | 89 | Nanjo, Masashi (1932) | Lost 0-2 | -121555 |
| 12modern | 135 | Morikawa, Taichi (1707) | Won 2-0 | +211576 |
| 13modern | 86 | Odachi, Kentarou (1598) | Won 2-0 | +191595 |
| 14modern | 42 | Tomita, Ryutaro (1661) | Won 2-1 | +191614 |
| 15modern | 27 | Ozawa, Takeshi (1851) | Won 2-0 | +221636 |
| top | average opponent: 1742record: 10-3 | new rating: 1636 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 244 | Mizuno, Masahito (1520) | Lost 1-2 | -181504 |
| 3standard | 1016 | Hosokawa, Takahiro (1345) | Lost 0-2 | -211483 |
| 4standard | 1055 | Murakami, Keisuke (1614) | Lost 0-2 | -161467 |
| top | average opponent: 1493record: 0-3 | new rating: 1467 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 54 | Wachi, Hiroki (1500) | Won 2-0 | +181518 |
| 2legacy | 352 | Maeyama, Yuuhei (1484) | Won 2-1 | +171535 |
| 3legacy | 567 | Takesue, Chikara (1712) | Lost 0-2 | -141521 |
| 4legacy | 745 | Ito, Takayuki (1414) | Lost 1-2 | -201501 |
| 5legacy | 574 | Ookado, Motoyuki (1516) | Won 2-1 | +181519 |
| 6legacy | 498 | Sunada, Shougo (1715) | Won 2-1 | +211540 |
| 7legacy | 379 | Takano, Masaaki (1498) | Lost 0-2 | -181522 |
| top | average opponent: 1548record: 4-3 | new rating: 1522 | ||