Ishii, Ryou
Current rating: 1659
Record: 40-33-5
| Grand Prix Yokohama 2019 (modern) | starting rating: 1711 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 300 | Itsukushima, Shun (1540) | Lost 0-2 | -211690 |
| 2modern | 692 | Harada, Akio (1525) | Won 2-0 | +151705 |
| 3modern | 983 | Poon, Tsz Sum (1500) | Lost 0-2 | -221683 |
| 4modern | 817 | Koh, Wee Lee Kelvin (1365) | Lost 0-2 | -241659 |
| top | average opponent: 1482record: 1-3 | new rating: 1659 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 91 | Shimizu, Yusuke (1407) | Won 2-0 | +141649 |
| 4modern | 327 | Ide, Syun (1469) | Lost 1-2 | -211628 |
| 5modern | 527 | Furujou, Takashi (1423) | Won 2-1 | +141642 |
| 6modern | 198 | Saito, Daisuke 0873 (1555) | Lost 0-2 | -191623 |
| 7modern | 292 | Chan, Andy 1391 (1537) | Won 2-0 | +161639 |
| 8modern | 244 | Saitou, Kazuya (1549) | Won 2-0 | +161655 |
| 9modern | 164 | Chihiro, Kogure (1600) | Won 2-0 | +171672 |
| 10modern | 70 | Ikedo, Masakazu (1669) | Won 2-0 | +181690 |
| 11modern | 59 | Ji, Zihao (1837) | Lost 0-2 | -151675 |
| 12modern | 128 | Nakano, Akinori (1590) | Won 2-1 | +161691 |
| 13modern | 96 | Yokoyama, Shohei (1768) | Lost 1-2 | -161675 |
| 14modern | 153 | Morotome, Ken (1675) | Won 2-1 | +181693 |
| 15modern | 117 | Saeki, Tadatoshi (1687) | Won 2-0 | +181711 |
| top | average opponent: 1597record: 9-4 | new rating: 1711 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 616 | Aoki, Toshihito (1422) | Won 2-0 | +161592 |
| 4standard | 189 | Aoki, Shougo (1629) | Won 2-1 | +181610 |
| 5standard | 94 | Saito, Shinya (1723) | Lost 0-2 | -161594 |
| 6standard | 286 | Tsukahara, Kazuto (1589) | Won 2-0 | +181612 |
| 7standard | 199 | Uemura, Tatsuya (1544) | Won 2-0 | +171629 |
| 8standard | 101 | Willems, Sjoerd (1765) | Won 2-0 | +201649 |
| 9standard | 60 | Fujita, Toshihide (1577) | Won 2-1 | +171666 |
| 10standard | 27 | Kio, Yuusuke (1636) | Lost 1-2 | -181648 |
| 11standard | 57 | Shiraki, Takahiro (1775) | Won 2-1 | +201668 |
| 12standard | 29 | Takimura, Kazuyuki (1873) | Lost 0-2 | -141654 |
| 13standard | 54 | Kadowaki, Yohei (1576) | Won 2-0 | +161670 |
| 14standard | 67 | Murakami, Souta (1711) | Lost 0-2 | -171653 |
| 15standard | 67 | Iitsuka, Yuuki (1664) | Lost 0-2 | -181635 |
| top | average opponent: 1653record: 8-5 | new rating: 1635 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 302 | Hattori, Kazuki (1661) | Won 2-0 | +221462 |
| 4standard | 150 | Iwasawa, Fumiya (1698) | Won 2-0 | +221484 |
| 5standard | 142 | Sato, Takatoshi (1851) | Lost 1-2 | -121472 |
| 6standard | 397 | Masuno, Ryosuke (1726) | Won 2-0 | +231495 |
| 7standard | 122 | Ishikawa, Ryota (1544) | Won 2-1 | +191514 |
| 8standard | 44 | Ninomiya, Souta (1596) | Won 2-1 | +191533 |
| 9standard | 32 | Hayashi, Yuya (1586) | Lost 0-2 | -171516 |
| 10standard | 97 | Masuko, Daisuke (1558) | Won 2-1 | +191535 |
| 11standard | 62 | Fujimoto, Takehiro (1850) | Won 2-0 | +231558 |
| 12standard | 33 | Hamaguchi, Masakuni (1663) | Won 2-1 | +201578 |
| 13standard | 23 | Matsuura, Takumi (1687) | Lost 0-2 | -161562 |
| 14standard | 83 | Tanaka, Shinichi (1873) | Won 2-0 | +241586 |
| 15standard | 20 | Yasooka, Shota (2100) | Lost 1-2 | -101576 |
| top | average opponent: 1722record: 9-4 | new rating: 1576 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2322 | Watanabe, Ryouta2795 (1500) | Lost 1-2 | -181476 |
| 2sealed | 2321 | Wajima, Yoshitaka (1482) | Lost 1-2 | -181458 |
| 3sealed | 2434 | Nakamichi, Ichiro (1445) | Lost 0-2 | -181440 |
| top | average opponent: 1476record: 0-3 | new rating: 1440 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 537 | Wada, Yusuke (1520) | Won 2-0 | +191508 |
| 3sealed | 534 | Ebitani, Keisuke (1597) | Lost 0-2 | -171491 |
| 4sealed | 632 | Igarashi, Taku (1520) | Draw 1-1 | +11492 |
| 5sealed | 689 | Nakashima, Toshihiko (1636) | Won 2-0 | +201512 |
| 6sealed | 620 | Fukudome, Yuu (1472) | Lost 1-2 | -181494 |
| top | average opponent: 1549record: 2-2-1 | new rating: 1494 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 177 | Tominaga, Yuya (1500) | Lost 1-2 | -171449 |
| 2standard | 252 | Kawai, Toshihiko (1483) | Won 2-0 | +181467 |
| 3standard | 316 | Babasaki, Taro (1555) | Draw 1-1 | +21469 |
| 4standard | 287 | Kumon, Takahiro (1500) | Lost 0-2 | -181451 |
| 5standard | 330 | Okada, Takuya245 (1482) | Won 2-1 | +191470 |
| 6standard | 257 | Kuwashiro, Yoshiyuki (1397) | Draw 1-1 | -11469 |
| 7standard | 250 | Maegawa, Tooru (1577) | Won 2-1 | +201489 |
| 8standard | 192 | Kawamura, Naoki (1486) | Lost 0-2 | -181471 |
| 9standard | 329 | Tanaka, Ryuuma (1496) | Won 2-0 | +181489 |
| top | average opponent: 1497record: 4-3-2 | new rating: 1489 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 166 | Kuramoto, Nariyasu (1500) | Won 2-0 | +191501 |
| 2standard | 256 | Kokubo, Kazuhiro (1516) | Lost 0-2 | -181483 |
| 3standard | 359 | Yanaseko, Kentarou (1625) | Lost 0-2 | -161467 |
| 4standard | 480 | Kitagawa, Tomohiro (1436) | Draw 1-1 | 01467 |
| 5standard | 464 | Ishihara, Susumu (1429) | Won 2-0 | +171484 |
| 6standard | 375 | Yasaki, Toshiya (1500) | Won 2-1 | +191503 |
| 7standard | 278 | Okada, Taro (1509) | Lost 0-2 | -181485 |
| 8standard | 289 | Okishige, Kazumi (1452) | Lost 0-2 | -191466 |
| top | average opponent: 1496record: 3-4-1 | new rating: 1466 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 336 | Kajima, Hiroyuki (1500) | Won 2-0 | +181501 |
| 2sealed | 222 | Yamamoto, Ryougo (1463) | Won 2-1 | +181519 |
| 3sealed | 39 | Furukawa, Hiroyuki (1456) | Lost 0-2 | -191500 |
| 4sealed | 285 | Harada, Sosuke (1523) | Won 2-1 | +181518 |
| 5sealed | 76 | Takasugi, Yuuki (1515) | Lost 0-2 | -181500 |
| 6sealed | 168 | Sato, Kouki (1516) | Lost 1-2 | -181482 |
| top | average opponent: 1496record: 3-3 | new rating: 1482 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Eum, Sung-Dae (1593) | Lost 0-2 | -161484 |
| 2sealed | 118 | Kubo, Masahiro (1484) | Draw 1-1 | 01484 |
| 3sealed | 117 | Hirose, Tatsuya (1482) | Lost 1-2 | -181466 |
| 4sealed | 155 | Umi, Hirokazu (1438) | Won 2-1 | +171483 |
| top | average opponent: 1499record: 1-2-1 | new rating: 1483 | ||