Niwa, Keita
Current rating: 1745 (#4128)
Record: 22-13 (GP) / 9-6 (professional)
| Players Tour Nagoya 2020 (pioneer) | starting rating: 1660 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 6 | Yanaseko, Kentarou (1640) | Won 2-1 | +181678 |
| 2draft | 6 | Shibata, Takahiro (1510) | Won 2-0 | +151693 |
| 3draft | 6 | Lim, Ernest (1917) | Won 2-0 | +221715 |
| 4pioneer | 8 | Utsunomiya, Takumi (1900) | Lost 1-2 | -151700 |
| 5pioneer | 19 | Wu, Kuang (1584) | Won 2-1 | +161716 |
| 6pioneer | 5 | Harane, Kenta (2006) | Won 2-1 | +231739 |
| 7pioneer | 4 | Masuda, Masahito (1755) | Won 2-0 | +191758 |
| 8pioneer | 6 | Kuroda, Masashiro (1931) | Lost 0-2 | -151743 |
| 9pioneer | 7 | Nakamura, Shuhei (2074) | Won 2-0 | +241767 |
| 10draft | 9 | Yukuhiro, Ken (2083) | Lost 0-2 | -131754 |
| 11draft | 15 | Nan, Tu (2087) | Lost 1-2 | -121742 |
| 12draft | 1 | Yakushi, Hideki (1650) | Lost 0-2 | -201722 |
| 13pioneer | 21 | Kawaguchi, Tetsu (1924) | Won 2-1 | +221744 |
| 14pioneer | 16 | Takeda, Hiroki (1633) | Won 2-0 | +161760 |
| 15pioneer | 12 | Calcano, Christian (1914) | Lost 0-2 | -151745 |
| top | average opponent: 1841record: 9-6 | new rating: 1745 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1606 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 297 | Osuga, Hiroaki (1193) | Won 2-1 | +111617 |
| 4standard | 126 | Hamada, Yuusai (1508) | Lost 1-2 | -201597 |
| 5standard | 299 | Choi, Kiho (1586) | Won 2-0 | +181615 |
| 6standard | 161 | Miyashita, Shota (1613) | Lost 0-2 | -181597 |
| 7standard | 386 | Taneichi, Hisashi (1577) | Won 2-0 | +181615 |
| 8standard | 189 | Ohori, Akihito (1498) | Won 2-0 | +161631 |
| 9standard | 107 | Tanji, Kensuke (1843) | Lost 1-2 | -151616 |
| 10standard | 127 | Matsumura, Toshikazu (1675) | Won 2-0 | +191635 |
| 11standard | 106 | Takahira, Shunsuke (1727) | Won 2-0 | +201655 |
| 12standard | 80 | Hasebe, Sho (1639) | Won 2-0 | +181673 |
| 13standard | 45 | Suzuki, Kazuhiro 4218 (1693) | Lost 0-2 | -181655 |
| 14standard | 80 | Jim, Thomas (1891) | Won 2-0 | +221677 |
| 15standard | 51 | Miyagi, Moto (1733) | Lost 0-2 | -171660 |
| top | average opponent: 1629record: 8-5 | new rating: 1660 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1636 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 357 | Inazawa, Ryo (1544) | Won 2-1 | +161652 |
| 3standard | 135 | Fujii, Yuuki (1425) | Lost 1-2 | -221630 |
| 4standard | 548 | Lee, Wing Tat (1617) | Won 2-0 | +181648 |
| 5standard | 248 | Wada, Kazumasa (1510) | Won 2-1 | +151663 |
| 6standard | 178 | Kageura, Taisuke (1717) | Lost 0-2 | -171646 |
| 7standard | 314 | Ochi, Masaaki (1535) | Lost 0-2 | -201626 |
| 8standard | 360 | Nakashima, Ryo (1538) | Lost 0-2 | -201606 |
| top | average opponent: 1555record: 3-4 | new rating: 1606 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 659 | Ishikawa, Tomohiko (1478) | Won 2-0 | +181518 |
| 2standard | 186 | Urrutia, Carlos (1496) | Won 2-0 | +171535 |
| 3standard | 453 | Saito, Keisuke (1465) | Won 2-1 | +171552 |
| 4standard | 349 | Uesugi, Fumiya (1521) | Won 2-0 | +171569 |
| 5standard | 218 | Yokoi, Takuya (1676) | Won 2-0 | +201589 |
| 6standard | 235 | Ii, Takahiro (1590) | Won 2-1 | +181607 |
| 7standard | 201 | Furusawa, Shu (1774) | Won 2-1 | +211628 |
| 8standard | 181 | Liu, Xuan (1796) | Lost 1-2 | -151613 |
| 9standard | 41 | Ooura, Masaki (1605) | Lost 1-2 | -181595 |
| 10standard | 80 | Aka, Shunsuke (1577) | Lost 0-2 | -181577 |
| 11standard | 112 | Murakami, Souta (1663) | Lost 0-2 | -171560 |
| 12standard | 117 | Hirami, Tomonori (1630) | Won 2-0 | +201580 |
| 13standard | 106 | Ookura, Takahiro (1516) | Won 2-0 | +171597 |
| 14standard | 85 | Gotou, Hiroyuki (1780) | Won 2-0 | +211618 |
| 15standard | 68 | Enomoto, Keisuke (1597) | Won 2-1 | +181636 |
| top | average opponent: 1611record: 11-4 | new rating: 1636 | ||