Tomita, Kouki
Current rating: 1623
Record: 20-14
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 590 | Yako, Ryuichi (1650) | Lost 0-2 | -181613 |
| 2sealed | 575 | Takahama, Ryusuke (1482) | Won 2-0 | +161629 |
| 3sealed | 630 | Tsukada, Masayuki (1499) | Won 2-1 | +161645 |
| 4sealed | 473 | Tsukahara, Kazuto (1657) | Won 2-0 | +181663 |
| 5sealed | 297 | Kato, Yoshiaki (1489) | Lost 0-2 | -211642 |
| 6sealed | 518 | Kudo, Koichi (1629) | Lost 1-2 | -191623 |
| top | average opponent: 1568record: 3-3 | new rating: 1623 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 320 | Zhou, Chenjie (1500) | Lost 1-2 | -191585 |
| 2modern | 857 | Kan, Kensei (1453) | Won 2-0 | +151600 |
| 3modern | 799 | Tanaka, Yuichi (1593) | Lost 0-2 | -181582 |
| 4modern | 1026 | Soejima, Naoki (1520) | Won 2-0 | +171599 |
| 5modern | 622 | Wakayama, Tetsuya (1510) | Won 2-1 | +161615 |
| 6modern | 688 | Naide, Kazutaka (1681) | Won 2-1 | +191634 |
| 7modern | 227 | Miyazawa, Shoya (1539) | Won 2-0 | +171651 |
| 8modern | 304 | Muto, Shogo (1558) | Lost 1-2 | -201631 |
| top | average opponent: 1544record: 5-3 | new rating: 1631 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 109 | Minobe, Yoshihiro (1501) | Won 2-0 | +181541 |
| 2sealed | 62 | Kanayama, Haruki (1536) | Lost 1-2 | -181523 |
| 3sealed | 922 | Kabeya, Atsushi (1506) | Won 2-1 | +171540 |
| 4sealed | 278 | Kosho, Tomoya (1615) | Won 2-1 | +201560 |
| 5sealed | 271 | Konishi, Akio (1544) | Won 2-1 | +171577 |
| 6sealed | 114 | Yamaguchi, Tomoyuki (1588) | Lost 0-2 | -171560 |
| 7sealed | 401 | Yasumoto, Naoki (1510) | Won 2-0 | +171577 |
| 8sealed | 238 | Hirosawa, Yuuta (1930) | Won 2-0 | +241601 |
| 9sealed | 87 | Wang, Kunrui (1574) | Won 2-1 | +171618 |
| 10draft | 572 | Saito, Yuji (1657) | Lost 0-2 | -171601 |
| 11draft | 571 | Kuze, Shouta (1808) | Won 2-1 | +221623 |
| 12draft | 572 | Henmi, Ryuji (1598) | Lost 0-2 | -191604 |
| top | average opponent: 1614record: 8-4 | new rating: 1604 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 95 | Takahashi, Masato (1498) | Won 2-0 | +181518 |
| 4standard | 87 | Ueno, Hiroshi (1649) | Won 2-1 | +201538 |
| 5standard | 18 | Hasegawa, Kazunari (1627) | Won 2-0 | +201558 |
| 6standard | 72 | Saida, Toshihiro (1627) | Lost 1-2 | -171541 |
| 7standard | 245 | Ohno, Isao (1725) | Lost 0-2 | -141527 |
| 8standard | 389 | Chung, Jason (2094) | Lost 1-2 | -91518 |
| 9standard | 622 | Fujimoto, Yosuke (1659) | Won 2-0 | +201538 |
| 10standard | 245 | Katsubayashi, Nobuhisa (1693) | Lost 0-2 | -151523 |
| top | average opponent: 1697record: 4-4 | new rating: 1523 | ||