Kato, Ryuta
Current rating: 1580
Record: 31-28-3
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 589 | Yoshida, Kazutaka (1518) | Won 2-0 | +171603 |
| 3standard | 328 | Sano, Takumi (1434) | Won 2-0 | +151618 |
| 4standard | 117 | Sunada, Shougo (1683) | Won 2-1 | +191637 |
| 5standard | 46 | Nogata, Sho (1572) | Won 2-1 | +171654 |
| 6standard | 56 | Higuchi, Makoto (1732) | Lost 1-2 | -171637 |
| 7standard | 79 | Tsumura, Kenji (1831) | Won 2-0 | +221659 |
| 8standard | 43 | Yasuda, Masayuki (1888) | Lost 0-2 | -141645 |
| 9standard | 163 | Sato, Yusei (1637) | Lost 0-2 | -181627 |
| 10standard | 221 | Yamakawa, Hiroaki (1589) | Won 2-0 | +171644 |
| 11standard | 294 | Furuichi, Takenori (1576) | Lost 1-2 | -191625 |
| 12standard | 253 | Nakazawa, Yusuke (1391) | Lost 1-2 | -221603 |
| 13standard | 317 | Takano, Yuta (1550) | Lost 0-2 | -191584 |
| 14standard | 283 | Furukawa, Takuto (1466) | Lost 1-2 | -211563 |
| 15standard | 279 | Murase, Tatsuya (1460) | Won 2-0 | +171580 |
| top | average opponent: 1595record: 7-7 | new rating: 1580 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1650 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 245 | Odachi, Kentarou (1449) | Lost 1-2 | -221628 |
| 3legacy | 829 | Jackel, Stephen (1553) | Draw 1-1 | -11627 |
| 4legacy | 804 | Kaneko, Akihiro (1516) | Lost 1-2 | -201607 |
| 5legacy | 949 | Hashimoto, Naoyuki (1463) | Lost 0-2 | -211586 |
| top | average opponent: 1495record: 0-3-1 | new rating: 1586 | ||
| Grand Prix Taipei 2016 (SOI standard) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 31 | Fujii, Hajime (1482) | Won 2-0 | +181530 |
| 3standard | 121 | Lin, Chia-Kuang (1540) | Lost 1-2 | -181512 |
| 4standard | 153 | Matsumoto, Yuki1423 (1745) | Won 2-0 | +221534 |
| 5standard | 170 | Hirami, Tomonori (1880) | Won 2-1 | +241558 |
| 6standard | 81 | Koshimura, Takeshi (1589) | Won 2-1 | +191577 |
| 7standard | 57 | Kakumae, Teruya (1737) | Won 2-1 | +211598 |
| 8standard | 12 | Sun, Bo (1973) | Won 2-1 | +241622 |
| 9standard | 9 | Jian, Sheng Xiu (1826) | Lost 0-2 | -141608 |
| 10standard | 45 | Shimazu, Yoshiki (1595) | Won 2-1 | +181626 |
| 11standard | 29 | Lu, Chao (1826) | Lost 0-2 | -151611 |
| 12standard | 35 | Shikama, Hideyasu (1478) | Lost 0-2 | -201591 |
| 13standard | 56 | Law, Charles (1870) | Won 2-1 | +231614 |
| 14standard | 52 | Yu, Chenghsien (1533) | Won 2-1 | +161630 |
| 15standard | 32 | Kuan, Jung-Ho (1698) | Won 2-1 | +201650 |
| top | average opponent: 1698record: 10-4 | new rating: 1650 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 865 | Hashimoto, Arata (1528) | Won 2-0 | +181502 |
| 2standard | 475 | Kanagawa, Takuya (1581) | Won 2-0 | +201522 |
| 3standard | 48 | Mochizuki, Kouta (1712) | Lost 1-2 | -151507 |
| 4standard | 458 | Kawai, Hiroki1988 (1552) | Won 2-1 | +191526 |
| 5standard | 589 | Furuichi, Takenori (1579) | Lost 1-2 | -171509 |
| 6standard | 567 | Asakura, Yoshitomo (1667) | Lost 0-2 | -151494 |
| 7standard | 999 | Shikano, Tsukasa (1496) | Won 2-0 | +181512 |
| 8standard | 556 | Arai, Ryo (1566) | Won 2-1 | +191531 |
| 9standard | 561 | Yamamura, Naoki (1504) | Lost 1-2 | -191512 |
| top | average opponent: 1576record: 5-4 | new rating: 1512 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 16 | Akagi, Takaaki (1431) | Lost 0-2 | -191484 |
| top | record: 0-1 | new rating: 1484 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 888 | Tanaka, Shinya (1522) | Lost 0-2 | -191523 |
| 3sealed | 936 | Inoue, Masanao (1498) | Lost 0-2 | -181505 |
| 4sealed | 1075 | Ueda, Yushi (1412) | Won 2-1 | +161521 |
| 5sealed | 985 | Yamada, Katsushi (1500) | Lost 0-2 | -181503 |
| top | average opponent: 1483record: 1-3 | new rating: 1503 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 33 | Kouyama, Motoshi (1518) | Won 2-1 | +181516 |
| 3standard | 246 | Hashimoto, Keisuke (1663) | Lost 1-2 | -151501 |
| 4standard | 303 | Hiroaki N., (1518) | Lost 1-2 | -181483 |
| 5standard | 604 | Kobayashi, Masanori (1563) | Won 2-1 | +191502 |
| 6standard | 376 | Shibata, Daisuke (1427) | Won 2-1 | +171519 |
| 7standard | 240 | Hyoudou, Kouichi (1518) | Won 2-1 | +181537 |
| 8standard | 222 | Ozawa, Takeshi (1830) | Won 2-0 | +231560 |
| 9standard | 154 | Sasaki, Masaya (Akita) (1535) | Lost 0-2 | -181542 |
| top | average opponent: 1571record: 5-3 | new rating: 1542 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 74 | Takahashi, Teruyoshi (1401) | Lost 0-2 | -201480 |
| 2modern | 629 | Takahashi, Takuya (1486) | Won 2-0 | +181498 |
| 3modern | 432 | Kunisada, Kenichiro (1499) | Draw 1-1 | 01498 |
| 4modern | 465 | Tanahashi, Hirofumi (1466) | Lost 1-2 | -181480 |
| 5modern | 576 | Aoki, Ryo (1481) | Draw 1-1 | 01480 |
| 6modern | 547 | Toyama, Satoshi (1485) | Won 2-0 | +181498 |
| 7modern | 419 | Koshiba, Norihiko (1529) | Won 2-1 | +181516 |
| 8modern | 316 | Kurihara, Tomo (1472) | Lost 0-2 | -181498 |
| top | average opponent: 1477record: 3-3-2 | new rating: 1498 | ||