Kowata, Kyohei
Current rating: 1595
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Arakaki, Gen (1446) | Won 2-1 | +181514 |
| 2sealed | 70 | Deguchi, Koya (1516) | Lost 1-2 | -181496 |
| 3sealed | 817 | Nakamura, Koki (1504) | Won 2-1 | +181514 |
| 4sealed | 358 | Gondo, Kosuke (1608) | Won 2-0 | +191533 |
| 5sealed | 388 | Schiller, Eduard-Daniel (1455) | Won 2-0 | +171550 |
| 6sealed | 170 | Uchino, Jun (1632) | Lost 0-2 | -161534 |
| 7sealed | 396 | Klenske, Dylan (1285) | Won 2-1 | +131547 |
| 8sealed | 299 | Xu, Siying (1791) | Won 2-1 | +221569 |
| 9sealed | 86 | Yamane, Naoto (1637) | Won 2-1 | +201589 |
| 10draft | 161 | Watanabe, Shogo5163 (1605) | Lost 1-2 | -181571 |
| 11draft | 33 | Nishida, Makoto (1749) | Lost 0-2 | -151556 |
| 12draft | 82 | Toda, Shinya (1557) | Lost 0-2 | -181538 |
| 13draft | 172 | Murata, Hiroaki (1522) | Won 2-1 | +181556 |
| 14draft | 120 | Nishimura, Takashi5362 (1706) | Won 2-1 | +211577 |
| 15draft | 37 | Sakamoto, Akihito (1577) | Won 2-0 | +181595 |
| top | average opponent: 1573record: 10-5 | new rating: 1595 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 245 | Sekine, Yoshinori (1538) | Lost 0-2 | -171478 |
| 2modern | 832 | Yanagitani, Kaname (1482) | Won 2-1 | +181496 |
| 3modern | 765 | Mizuno, Masahito (1451) | Won 2-1 | +171513 |
| 4modern | 756 | Miyabe, Kouichi (1671) | Lost 1-2 | -151498 |
| 5modern | 574 | Ishii, Asuha (1393) | Lost 1-2 | -201478 |
| 6modern | 903 | Nakanishi, Masakazu (1481) | Won 2-0 | +181496 |
| top | average opponent: 1503record: 3-3 | new rating: 1496 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 205 | Kokubun, Hiroshi (1689) | Won 2-1 | +211521 |
| 2sealed | 83 | Miyoshi, Tomohito (1522) | Lost 1-2 | -181503 |
| 3sealed | 593 | Kusakawa, Naoto (1369) | Lost 0-2 | -201483 |
| 4sealed | 997 | Nagase, Yoshinobu (1479) | Lost 1-2 | -181465 |
| 5sealed | 1009 | Itazu, Boram (1327) | Won 2-1 | +151480 |
| 6sealed | 840 | Nishiguchi, Yoshinori (1320) | Lost 0-2 | -201460 |
| 7sealed | 704 | Itakura, Kenichi (1456) | Won 2-1 | +171477 |
| 8sealed | 536 | Sawai, Fuka (1478) | Won 2-0 | +181495 |
| top | average opponent: 1455record: 4-4 | new rating: 1495 | ||