Ishida, Yuuichi
Current rating: 1472
Record: 47-44
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 348 | Kuroyanagi, Yoshimi (1500) | Lost 0-2 | -191544 |
| 2standard | 441 | Takeda, Kouichi (1480) | Lost 0-2 | -191525 |
| 3standard | 787 | Saito, Eisuke (1392) | Won 2-0 | +161541 |
| 4standard | 780 | Morishita, Choryo (1468) | Lost 1-2 | -201521 |
| 5standard | 739 | Hasaba, Kenji (1342) | Won 2-1 | +151536 |
| 6standard | 587 | Hashikami, Taisuke (1400) | Lost 0-2 | -201516 |
| 7standard | 585 | Matsushima, Tsutomu (1314) | Lost 0-2 | -221494 |
| 8standard | 524 | Shimura, Yasuhiko (1284) | Lost 0-2 | -221472 |
| top | average opponent: 1398record: 2-6 | new rating: 1472 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | Ooba, Hideto (1457) | Won 2-0 | +161583 |
| 2sealed | 2 | Shinichiro S, (1517) | Won 2-0 | +171600 |
| 3sealed | 34 | Koyama, Kenta (1747) | Lost 1-2 | -161584 |
| 4sealed | 284 | Unno, Yoshifumi (1504) | Won 2-1 | +171601 |
| 5sealed | 115 | Kawahira, Yoshiyaki (1483) | Won 2-1 | +161617 |
| 6sealed | 43 | Jeong, Hyunwoo (1648) | Lost 0-2 | -181599 |
| 7sealed | 230 | Fujimoto, Tomoya (1562) | Lost 1-2 | -181581 |
| 8sealed | 211 | Katagiri, Shinichi (1620) | Lost 0-2 | -181563 |
| top | average opponent: 1567record: 4-4 | new rating: 1563 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 45 | Takanashi, Kouji (1565) | Lost 0-2 | -191576 |
| 2standard | 285 | Kobayashi, Satoshi (1490) | Won 2-0 | +171593 |
| 3standard | 203 | Murakami, Yuuki (Miyagi) (1773) | Lost 0-2 | -151578 |
| 4standard | 385 | Matsuo, Keita (1417) | Won 2-1 | +151593 |
| 5standard | 247 | Fukuda, Junpei (1499) | Won 2-0 | +161609 |
| 6standard | 153 | Suzuki, Akira (1522) | Won 2-1 | +171626 |
| 7standard | 98 | Takahashi, Daiki (1542) | Lost 1-2 | -201606 |
| 8standard | 186 | Tashima, Chihiro (1525) | Lost 0-2 | -191587 |
| 9standard | 167 | Ohshiba, Atsushi (1486) | Lost 0-2 | -201567 |
| top | average opponent: 1535record: 4-5 | new rating: 1567 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | matsuo, takafumi (1500) | Lost 0-2 | -211656 |
| 2sealed | 194 | Inoue, Masanao (1537) | Lost 1-2 | -201636 |
| 3sealed | 208 | Calvert, James (1464) | Lost 0-2 | -221614 |
| 4sealed | 221 | Katagiri, Shinichi (1524) | Lost 1-2 | -191595 |
| top | average opponent: 1506record: 0-4 | new rating: 1595 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 132 | Furukawa, Ken'ichi (1643) | Won 2-1 | +191622 |
| 2extended | 71 | Katayama, Takahiro (1733) | Lost 1-2 | -161606 |
| 3extended | 94 | Okamoto, Konosuke (1469) | Won 2-0 | +151621 |
| 4extended | 138 | Nitta, Yuki (1537) | Won 2-1 | +171638 |
| 5extended | 59 | Takahashi, Junya (1655) | Won 2-1 | +181656 |
| 6extended | 73 | Mori, Katsuhiro (1918) | Lost 0-2 | -131643 |
| 7extended | 108 | Kuroda, Masashiro (1901) | Won 2-0 | +221665 |
| 8extended | 134 | Nagase, Shougo (1510) | Won 2-0 | +161681 |
| 9extended | 36 | Okano, Tetsuya (1584) | Won 2-0 | +161697 |
| 10extended | 45 | Chi, Tatsuya (1612) | Lost 1-2 | -201677 |
| 11extended | 50 | Omori, Ken'ichirou (1589) | Won 2-1 | +171694 |
| 12extended | 23 | Kounoike, Masaki (1552) | Won 2-1 | +151709 |
| 13extended | 44 | Ootsuka, Koutarou (2077) | Lost 0-2 | -121697 |
| 14extended | 47 | Taniguchi, Hiroaki (1555) | Lost 1-2 | -201677 |
| top | average opponent: 1667record: 9-5 | new rating: 1677 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 203 | Akasaka, Naoya (1464) | Lost 0-0 | -211610 |
| 2sealed | 208 | Nakagawa, Hiroki (1413) | Won 2-0 | +141624 |
| 3sealed | 123 | Sakurai, Hikaru (1489) | Won 2-0 | +161640 |
| 4sealed | 96 | Ishida, Hiroshi (1520) | Lost 1-2 | -201620 |
| 5sealed | 204 | Bandou, Junichirou (1697) | Lost 1-2 | -171603 |
| top | average opponent: 1517record: 2-3 | new rating: 1603 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1670 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 76 | Iwami, Yuuki (1500) | Lost 0-2 | -211649 |
| 2block | 332 | Ono, Satoru (1482) | Won 2-0 | +151664 |
| 3block | 158 | Kudo, Hiroshi (1473) | Won 2-1 | +151679 |
| 4block | 113 | Botin, Arvin (1520) | Lost 1-2 | -211658 |
| 5block | 233 | Nakamura, Atsushi (1456) | Won 2-1 | +141672 |
| 6block | 188 | Saitou, Yuu (1571) | Lost 1-2 | -201652 |
| 7block | 211 | Nishimoto, Takuya (1452) | Lost 0-2 | -211631 |
| top | average opponent: 1494record: 3-4 | new rating: 1631 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | Yoshinori, Matsumura (1500) | Won 2-1 | +161613 |
| 2sealed | 52 | Kuramoto, Hiroki (1519) | Won 2-0 | +161629 |
| 3sealed | 18 | Fujisawa, Takashi (1434) | Won 2-0 | +151644 |
| 4sealed | 28 | Sasagawa, Tomohide (1823) | Lost 0-2 | -151629 |
| 5sealed | 33 | Ueyama, Yuji (1541) | Won 2-0 | +161645 |
| 6sealed | 44 | Itou, Shuuhei (1628) | Won 2-1 | +181663 |
| 7sealed | 74 | Moriya, Jun (1560) | Won 2-0 | +161679 |
| 8sealed | 70 | Fujita, Tsuyoshi (1782) | ID | 01679 |
| 9draft | 28 | Iwasaki, Yuusuke (1597) | Lost 0-2 | -191660 |
| 10draft | 26 | Komiyama, Hideki (1639) | Won 2-0 | +171677 |
| 11draft | 19 | Kaji, Tetsuya (1643) | Lost 1-2 | -181659 |
| 12draft | 3 | Kim, Min Su (1537) | Lost 0-2 | -211638 |
| 13draft | 28 | Inanaga, Nobuyuki (1535) | Won 2-0 | +171655 |
| 14draft | 11 | Kobara, Shinji (1527) | Won 2-1 | +151670 |
| top | average opponent: 1590record: 9-4-1 | new rating: 1670 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Taniguchi, Hidehisa (1561) | Won 2-0 | +181579 |
| 2sealed | 51 | Shiota, Yasuo (1479) | Won 2-0 | +161595 |
| 3sealed | 1 | Takasaki, Yuichi (1674) | Won 2-0 | +201615 |
| 4sealed | 55 | Su, Michael (1577) | Won 2-0 | +171632 |
| 5sealed | 27 | Maki, Koichiro (1802) | Lost 1-2 | -151617 |
| 6sealed | 30 | Katou, Takahiko (1488) | Won 2-0 | +161633 |
| 7sealed | 26 | Nonaka, Kentarou (1672) | Lost 1-2 | -171616 |
| 8sealed | 59 | Yasuno, Junji (1566) | Lost 1-2 | -191597 |
| top | average opponent: 1602record: 5-3 | new rating: 1597 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 101 | Nakayama, Shirou (1592) | Won 2-1 | +191558 |
| 4standard | 81 | Fujitsuka, Shougo (1613) | Lost 0-2 | -171541 |
| 5standard | 199 | Asai, Ryuusuke (1607) | Won 2-1 | +191560 |
| 6standard | 61 | Kagami, Gen (1591) | Lost 1-2 | -171543 |
| 7standard | 150 | Sawada, Ken (1488) | Won 2-1 | +171560 |
| 8standard | 101 | Nakazawa, Kazuhiro (1599) | Won 2-1 | +191579 |
| 9standard | 52 | Tsujimura, Tsuyoshi (1611) | Lost 0-2 | -181561 |
| top | average opponent: 1586record: 4-3 | new rating: 1561 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 42 | Matui, Yuuta (1500) | Won 2-1 | +181518 |
| 2sealed | 138 | Kobayashi, Akihito (1450) | Won 2-0 | +171535 |
| 3sealed | 71 | Imagawa, Hiromasa (1500) | Won 2-0 | +171552 |
| 4sealed | 12 | Harada, Hiroshi (1566) | Lost 0-2 | -181534 |
| 5sealed | 49 | Okabayashi, Masanao (1663) | Won 2-1 | +211555 |
| 6sealed | 49 | Suzuki, Kenta (1612) | Lost 0-2 | -171538 |
| 7sealed | 86 | Takahashi, Kenji (1628) | Won 2-1 | +191557 |
| 8sealed | 118 | Ishii, Taisuke (1549) | Lost 0-2 | -181539 |
| top | average opponent: 1559record: 5-3 | new rating: 1539 | ||