Ishii, Hayato
Current rating: 1759 (#3493)
Record: 127-88-7 (GP) / 8-7 (professional)
- 2002
- 2003
- 2004
- 2005
- 2006
- 2007
- 2008
- 2009
- 2010
- 2012
- 2013
- 2014
- 2015
- 2016
- 2018
- 2019
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1804 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 71 | Kozaki, Yosuke (1570) | Lost 0-2 | -221782 |
| 2sealed | 597 | Suzuki, Nobuya5760 (1513) | Lost 0-2 | -231759 |
| top | average opponent: 1541record: 0-2 | new rating: 1759 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1836 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 458 | Fujimoto, Shun (1500) | Lost 0-2 | -241812 |
| 2sealed | 945 | Horiyama, Hiroki (1484) | Won 2-1 | +121824 |
| 3sealed | 584 | Katou, Takeru (1389) | Won 2-1 | +111835 |
| 4sealed | 468 | Okada, Keita (1432) | Won 2-0 | +111846 |
| 5sealed | 384 | Nose, Shunsuke (1852) | Lost 0-2 | -181828 |
| 6sealed | 518 | Tani, Emi (1508) | Lost 0-2 | -241804 |
| top | average opponent: 1527record: 3-3 | new rating: 1804 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1892 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 588 | Takizawa, Ryouta (1538) | Won 2-0 | +121904 |
| 2standard | 6 | Iwakura, Tatsuro (1700) | Lost 0-2 | -221882 |
| 3standard | 858 | Hayashi, Shouya (1765) | Lost 0-2 | -201862 |
| 4standard | 1298 | Yajima, Yasunori (1348) | Lost 1-2 | -261836 |
| top | average opponent: 1588record: 1-3 | new rating: 1836 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1837 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 393 | Takeda, Hiroshi (1500) | Won 2-1 | +121849 |
| 2sealed | 507 | Nishizawa, Sora (1518) | Won 2-0 | +121861 |
| 3sealed | 66 | Sun, Chuan (1518) | Won 2-1 | +121873 |
| 4sealed | 270 | Yabumoto, Taroumaru (1555) | Lost 1-2 | -241849 |
| 5sealed | 269 | Naka, Yoshihiro (1584) | Lost 1-2 | -221827 |
| 6sealed | 405 | Tamber, Tobey (1776) | Lost 0-2 | -191808 |
| 7sealed | 859 | Juumonji, Ryou (1688) | Won 2-0 | +151823 |
| 8sealed | 423 | Ohashi, Gaku (1605) | Won 2-0 | +151838 |
| 9sealed | 424 | Takahashi, Toshirou (1485) | Won 2-0 | +111849 |
| 10draft | 147 | Sasaki, Hideto (1530) | Won 2-0 | +131862 |
| 11draft | 162 | Baang, Johan (1580) | Won 2-1 | +131875 |
| 12draft | 73 | Matsumoto, Akihiro (1663) | Won 2-1 | +141889 |
| 13draft | 112 | Terada, Tadayoshi (1564) | Lost 0-2 | -241865 |
| 14draft | 96 | Ohki, Tatsuhiko (1638) | Won 2-1 | +141879 |
| 15draft | 170 | Igarashi, Takato (1604) | Won 2-0 | +131892 |
| top | average opponent: 1587record: 11-4 | new rating: 1892 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1850 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2309 | Kanaya, Akihiro (1500) | Won 2-1 | +121862 |
| 2sealed | 2100 | Uemura, Akihiro (1518) | Lost 0-2 | -241838 |
| 3sealed | 2281 | Ihara, Akihiro (1363) | Won 2-1 | +101848 |
| 4sealed | 2156 | Kageyama, Akihiro (1517) | Won 2-1 | +121860 |
| 5sealed | 2179 | Yanagawa, Yuuki (1427) | Won 2-0 | +101870 |
| 6sealed | 2090 | Oikawa, Ryusuke (1558) | Won 2-1 | +131883 |
| 7sealed | 2069 | Inoue, Yuusuke (1642) | Lost 0-2 | -231860 |
| 8sealed | 2097 | Inoue, Takamichi (1534) | Lost 0-2 | -231837 |
| top | average opponent: 1507record: 5-3 | new rating: 1837 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1854 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 339 | Hamada, Kouji (1428) | Won 2-1 | +111865 |
| 2sealed | 100 | Kashiwa, Tatsuya (1766) | Won 2-1 | +161881 |
| 3sealed | 52 | Yoshioka, Norisato (1494) | Lost 0-2 | -251856 |
| 4sealed | 271 | Asakura, Takumi (1409) | Won 2-0 | +101866 |
| 5sealed | 201 | Tsuruta, Tomoyuki (1524) | Won 2-0 | +121878 |
| 6sealed | 107 | Yokoyama, Takaya (1530) | Won 2-1 | +121890 |
| 7sealed | 33 | Itou, Taisei (1537) | Lost 0-2 | -241866 |
| 8sealed | 125 | Matsumoto, Yuki2978 (1954) | Lost 0-2 | -161850 |
| top | average opponent: 1580record: 5-3 | new rating: 1850 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1731 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Tsutai, Koutarou (1385) | Won 2-0 | +121743 |
| 2sealed | 119 | Samejima, Ippei (1462) | Won 2-0 | +131756 |
| 3sealed | 55 | Nagai, Toshiki (1536) | Won 2-0 | +141770 |
| 4sealed | 38 | Lee, Shi Tian (1965) | Lost 0-2 | -151755 |
| 5sealed | 55 | Imura, Satoshi (1562) | Won 2-0 | +151770 |
| 6sealed | 98 | Cho, Bu-Hong (1769) | Won 2-1 | +181788 |
| 7sealed | 19 | Suzuki, Nobuyoshi (1812) | Won 2-1 | +181806 |
| 8sealed | 40 | Emori, Shinichi (1573) | Won 2-0 | +141820 |
| 9sealed | 14 | Sato, Hisao (1569) | Won 2-0 | +131833 |
| 10draft | 96 | Sei, Makoto (1643) | Won 2-0 | +151848 |
| 11draft | 106 | Ito, Keigo (1707) | Won 2-1 | +151863 |
| 12draft | 16 | Honda, Atsuo (1804) | Won 2-1 | +171880 |
| 13draft | 29 | Nakai, Sunao (1662) | Lost 0-2 | -221858 |
| 14draft | 45 | Kasuga, Ryosuke (1664) | Lost 1-2 | -211837 |
| 15draft | 16 | Tezuka, Yo (1776) | Won 2-1 | +171854 |
| top | average opponent: 1659record: 12-3 | new rating: 1854 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1793 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 73 | Kondou, Keiichi (1517) | Won 2-0 | +131806 |
| 3standard | 182 | Shiba, Yunosuke (1528) | Lost 0-2 | -231783 |
| 4standard | 162 | Kawasaki, Hirotaka (1532) | Lost 1-2 | -221761 |
| 5standard | 219 | Yano, Keitarou (1485) | Won 2-0 | +131774 |
| 6standard | 201 | Hashimoto, Masatoshi (1544) | Lost 1-2 | -221752 |
| 7standard | 213 | Hattori, Kazuki (1576) | Lost 1-2 | -211731 |
| top | average opponent: 1530record: 2-4 | new rating: 1731 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1777 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 265 | Noguchi, Shun (1500) | Won 2-1 | +131790 |
| 2sealed | 273 | Kojima, Tatuya (1518) | Won 2-0 | +131803 |
| 3sealed | 15 | Kimura, Shigeki (1474) | Lost 1-2 | -241779 |
| 4sealed | 157 | Tomizawa, Shoudai (1569) | Won 2-1 | +151794 |
| 5sealed | 104 | Suzuki, Yuuji (1639) | Won 2-0 | +151809 |
| 6sealed | 99 | Ideue, Yuuki (1479) | Won 2-0 | +121821 |
| 7sealed | 68 | Kobayashi, Akihiro (1519) | Won 2-1 | +131834 |
| 8sealed | 150 | Sugiyama, Yuya (1845) | Lost 1-2 | -181816 |
| 9sealed | 224 | Zhao, Tianyu (1552) | Lost 0-2 | -231793 |
| top | average opponent: 1566record: 6-3 | new rating: 1793 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1780 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 319 | Okuda, Masateru (1512) | Won 2-0 | +141794 |
| 2modern | 26 | Ishiguro, Masamitsu (1518) | Won 2-0 | +131807 |
| 3modern | 240 | Sasaki, Yuusuke (Hyogo) (1729) | Lost 0-2 | -201787 |
| 4modern | 191 | Toriuchi, Daizo (1453) | Won 2-1 | +121799 |
| 5modern | 210 | Ozawa, Takeshi (1846) | Won 2-0 | +191818 |
| 6modern | 121 | Kishi, Hideyuki (1510) | Won 2-0 | +131831 |
| 7modern | 110 | Kawazoe, Keiichi (1565) | Won 2-1 | +131844 |
| 8modern | 41 | Furukawa, Hiroki (1630) | Lost 0-2 | -221822 |
| 9modern | 130 | Tanahashi, Masayasu (1776) | Won 2-1 | +171839 |
| 10modern | 68 | Harano, Takahiro (1674) | Lost 1-2 | -211818 |
| 11modern | 59 | Aoki, Ryousuke (1746) | Lost 1-2 | -191799 |
| 12modern | 77 | Watanabe, Kensuke (1567) | Lost 0-2 | -221777 |
| top | average opponent: 1627record: 7-5 | new rating: 1777 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1782 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 101 | Tsukamoto, Tatsushi (1436) | Won 2-0 | +121794 |
| 5standard | 11 | Ikeda, Tsuyoshi (1844) | Draw 1-1 | 01794 |
| 6standard | 30 | Obata, Shiou (1387) | Lost 0-2 | -251769 |
| 7standard | 79 | Date, Hideyuki (1561) | Lost 0-2 | -211748 |
| 8standard | 142 | Noro, Hitoshi (1537) | Won 2-0 | +141762 |
| 9standard | 95 | Sato, Hiroshi (1551) | Won 2-1 | +141776 |
| 10standard | 52 | Senba, Kotaro (1659) | Draw 1-1 | -21774 |
| 11standard | 58 | Chiba, Akio (1717) | Won 2-0 | +171791 |
| 12standard | 44 | Oosaka, Yuusuke (1800) | Won 2-1 | +181809 |
| 13standard | 33 | Yamazaki, Shun (1520) | Lost 1-2 | -231786 |
| 14standard | 2 | Chijimi, Keiichi (1712) | Lost 1-2 | -191767 |
| 15standard | 44 | Harano, Takahiro (1533) | Won 2-1 | +131780 |
| top | average opponent: 1605record: 6-4-2 | new rating: 1780 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1799 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 1 | Takahira, Shunsuke (1518) | Lost 1-2 | -231776 |
| 3extended | 347 | Obata, Shiou (1389) | Won 2-0 | +121788 |
| 4extended | 270 | Watanabe, Takumi (1519) | Won 2-0 | +131801 |
| 5extended | 184 | Kidera, Seita (1482) | Lost 1-2 | -241777 |
| 6extended | 252 | Aizawa, Takeshi (1465) | Won 2-0 | +131790 |
| 7extended | 143 | Kato, Keitaro (1541) | Won 2-0 | +131803 |
| 8extended | 167 | Kato, Shinya (Saitama (1603) | Lost 1-2 | -211782 |
| top | average opponent: 1502record: 4-3 | new rating: 1782 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1830 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 33 | Miyazono, Takeshi (1541) | Lost 1-2 | -231807 |
| 4sealed | 157 | Kubomura, Masaaki (1406) | Won 2-0 | +111818 |
| 5sealed | 56 | Iwahashi, Kouki (1538) | Won 2-0 | +131831 |
| 6sealed | 50 | Kim, Cynic (1713) | Lost 0-2 | -201811 |
| 7sealed | 48 | Nishiwaki, Masato (1436) | Won 2-0 | +111822 |
| 8sealed | 49 | Matsuyama, Satoshi (1550) | Lost 0-2 | -231799 |
| top | average opponent: 1531record: 3-3 | new rating: 1799 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1702 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 60 | Hirabayashi, Kazuya (1687) | Won 2-0 | +181720 |
| 3sealed | 101 | Ueno, Takamasa (1573) | Won 2-1 | +151735 |
| 4sealed | 33 | Kuo, Tzu-Ching (1872) | Won 2-0 | +211756 |
| 5sealed | 20 | Yasufuku, Akihiro (1550) | Won 2-0 | +141770 |
| 6sealed | 19 | Momose, Kazuyuki (1777) | Won 2-1 | +181788 |
| 7sealed | 10 | Gotou, Hiroaki (1762) | Won 2-0 | +181806 |
| 8sealed | 4 | Yamamoto, Kentaro (1878) | Lost 0-2 | -171789 |
| 9sealed | 10 | Vidugiris, Gaudenis (1820) | Lost 1-2 | -171772 |
| 10draft | 42 | Gotou, Hiroaki (1737) | Won 2-1 | +171789 |
| 11draft | 23 | Taru, Genki (1836) | Won 2-1 | +191808 |
| 12draft | 15 | Suzuki, Nobuyoshi (1782) | Won 2-0 | +171825 |
| 13draft | 17 | Watanabe, Yuuya (1982) | Lost 0-2 | -151810 |
| 15draft | 13 | Yamamoto, Kentaro (1896) | Won 2-0 | +201830 |
| top | average opponent: 1781record: 10-3 | new rating: 1830 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1660 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 36 | Morita, Masahiko (2042) | Lost 0-2 | -121648 |
| 5sealed | 100 | Nakamura, Yuichiro (1647) | Won 2-1 | +181666 |
| 6sealed | 29 | Kinoshita, Atsushi (1487) | Won 2-0 | +151681 |
| 7sealed | 52 | Akiyama, Takashi (1654) | Won 2-1 | +181699 |
| 8sealed | 140 | Kaga, Hiroyuki (1578) | ID | 01699 |
| 9draft | 9 | Tashiro, Yoshiaki (1708) | Won 2-0 | +181717 |
| 10draft | 6 | Seki, Keita (1706) | Won 2-0 | +181735 |
| 11draft | 23 | Ruel, Olivier (2030) | Lost 1-2 | -131722 |
| 12draft | 25 | Fujimoto, Taichi (1769) | Lost 1-2 | -171705 |
| 13draft | 19 | Tanahashi, Masayasu (1781) | Lost 1-2 | -171688 |
| 14draft | 17 | Toyota, Hiroki (1483) | Won 2-1 | +141702 |
| top | average opponent: 1717record: 6-4-1 | new rating: 1702 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 29 | Se, Atsuo (1488) | Won 2-0 | +161600 |
| 5block | 10 | Ishikawa, Ren (1881) | Lost 1-2 | -131587 |
| 6block | 31 | Kaneko, Masami (1786) | Lost 1-2 | -151572 |
| 7block | 96 | Sugimura, Yoshiyasu (1495) | Won 2-0 | +171589 |
| 8block | 47 | Horimoto, Takeshi (1509) | Won 2-1 | +171606 |
| 9block | 46 | Sasahara, Yasufumi (1716) | ID | 01606 |
| 10block | 50 | Yamada, Yuma (1591) | Lost 1-2 | -191587 |
| 11block | 59 | Yamaguchi, Hiroshi (1554) | Draw 1-1 | 01587 |
| 12block | 56 | Gotou, Hiroaki (1600) | Won 2-0 | +181605 |
| 13block | 46 | Oodan, Takeshi (1657) | Won 2-0 | +191624 |
| 14block | 36 | Akai, Satoshi (1643) | Won 2-0 | +181642 |
| 15block | 12 | Shimada, Hiroya (1610) | Won 2-1 | +181660 |
| top | average opponent: 1627record: 7-3-2 | new rating: 1660 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 14 | Takesue, Chikara (1588) | Lost 0-2 | -181566 |
| 3standard | 174 | Sato, Shunsuke (1500) | Won 2-1 | +171583 |
| 4standard | 124 | Tanaka, Yu (1546) | Won 2-0 | +171600 |
| 5standard | 157 | Yazawa, Yuu (1536) | Draw 1-1 | -11599 |
| 6standard | 115 | Yamamoto, Shouhei (1823) | Draw 1-1 | +41603 |
| 7standard | 23 | Kanekiyo, Ryusuke (1538) | Lost 1-2 | -191584 |
| top | average opponent: 1589record: 2-2-2 | new rating: 1584 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1636 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 16 | Okada, Kou (1679) | Lost 1-2 | -171619 |
| 3sealed | 106 | Suzuki, Masatsuna (1642) | Lost 0-2 | -181601 |
| 4sealed | 133 | Baba, Yasunori (1626) | Lost 0-2 | -171584 |
| top | average opponent: 1649record: 0-3 | new rating: 1584 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1670 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 53 | Oomura, Tomoya (1537) | Lost 1-2 | -201650 |
| 4standard | 129 | Nishitani, Yasunobu (1535) | Won 2-0 | +151665 |
| 5standard | 105 | Hanyu, Yusuke (1511) | Lost 1-2 | -201645 |
| 6standard | 142 | Okada, Norihiro (1526) | Won 2-0 | +161661 |
| 7standard | 112 | Kushigami, Yasuhiro (1536) | Won 2-1 | +151676 |
| 8standard | 74 | Matsui, Hiroyuki (1557) | Lost 1-2 | -201656 |
| 9standard | 120 | Ushio, Atsushi (1545) | Lost 1-2 | -201636 |
| top | average opponent: 1535record: 3-4 | new rating: 1636 | ||
| Pro Tour Kobe 2006 (TSP draft) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 102 | Sarton, Clement (1529) | Won 2-1 | +161643 |
| 2draft | 191 | Bornarel, Nicolas (1759) | Won 2-1 | +201663 |
| 3draft | 156 | Murakami, Yuuki (Miyagi) (1769) | Won 2-0 | +201683 |
| 4draft | 151 | Thompson, Mike (1828) | Won 2-0 | +211704 |
| 5draft | 68 | Tomelitsch, Patrick (1825) | Won 2-1 | +201724 |
| 6draft | 146 | Herberholz, Mark (1983) | Lost 0-2 | -131711 |
| 7draft | 44 | Chan, Tiago (2028) | Lost 1-2 | -131698 |
| 8draft | 53 | Enevoldsen, Thomas (1762) | Lost 0-2 | -171681 |
| 9draft | 47 | Fennell, Christopher (1874) | Lost 0-2 | -141667 |
| 10draft | 33 | Preto, Sergio (1657) | Won 2-0 | +181685 |
| 11draft | 34 | Vandover, Sean (1560) | Won 2-0 | +161701 |
| 12draft | 8 | Stein, Sam (1810) | Lost 0-2 | -171684 |
| 13draft | 60 | Enevoldsen, Thomas (1741) | Won 2-1 | +201704 |
| 14draft | 60 | Fujita, Osamu (1895) | Lost 0-2 | -151689 |
| 15draft | 18 | Chao, Peter (1635) | Lost 1-2 | -191670 |
| top | average opponent: 1777record: 8-7 | new rating: 1670 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 73 | Aoki, Ryousuke (1607) | Lost 1-2 | -191647 |
| 3sealed | 85 | Orihara, Jun (1538) | Lost 1-2 | -201627 |
| top | average opponent: 1572record: 0-2 | new rating: 1627 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 27 | Sato, Rei (1640) | Lost 0-2 | -181622 |
| 3block | 96 | Gotou, Takahiro (1497) | Won 2-0 | +161638 |
| 4block | 110 | Hirokawa, Tatsuya (1521) | Won 2-0 | +161654 |
| 5block | 64 | Matsuyama, Satoshi (1506) | Won 2-0 | +151669 |
| 6block | 23 | Miura, Seitarou (1552) | Draw 1-1 | -21667 |
| 7block | 52 | Kamei, Shunsuke (1678) | Won 2-0 | +181685 |
| 8block | 31 | Nakazawa, Kazuhiro (1622) | Lost 0-2 | -191666 |
| top | average opponent: 1574record: 4-2-1 | new rating: 1666 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 57 | Hashizume, Nobuyuki (1525) | Lost 0-2 | -191573 |
| 3sealed | 141 | Tsuchiya, Shigetaka (1462) | Won 2-0 | +161589 |
| 4sealed | 111 | Tamai, Katsuyoshi (1467) | Lost 0-2 | -201569 |
| 5sealed | 136 | Mukai, Masayuki (1498) | Won 2-0 | +171586 |
| 6sealed | 74 | Kawamura, Akihiro (1541) | Won 2-1 | +171603 |
| 7sealed | 77 | Nakashiro, Mizuki (1633) | Won 2-1 | +181621 |
| 8sealed | 36 | Ogura, Ryou (1673) | Won 2-0 | +191640 |
| top | average opponent: 1543record: 5-2 | new rating: 1640 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Fujimori, Kouichi (1500) | Won 2-1 | +161617 |
| 2sealed | 163 | Harita, Masaru (1544) | Lost 1-2 | -191598 |
| 3sealed | 205 | Takawashi, Shun'Ichi (1503) | Won 2-0 | +161614 |
| 4sealed | 122 | Kim, Min-su (Japan) (1620) | Lost 0-2 | -181596 |
| 5sealed | 213 | Wakae, Akio (1378) | Draw 1-1 | -41592 |
| top | average opponent: 1509record: 2-2-1 | new rating: 1592 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 32 | Ito, Masahiro (1518) | Lost 1-2 | -191548 |
| 3standard | 292 | Ohara, Yoshirou (1561) | Lost 0-2 | -181530 |
| 4standard | 414 | Okamoto, Kazuya (1482) | Won 2-0 | +171547 |
| 5standard | 242 | Nishiwaki, Masato (1424) | Won 2-1 | +161563 |
| 6standard | 150 | Higaki, Takao (1738) | Won 2-1 | +211584 |
| 7standard | 146 | Ogawa, Syunsuke (1665) | Won 2-0 | +201604 |
| 8standard | 110 | Matsuoka, Tomohide (1574) | Won 2-0 | +171621 |
| 9standard | 71 | Miyazaki, Yasuhiro (1508) | Lost 1-2 | -201601 |
| top | average opponent: 1559record: 5-3 | new rating: 1601 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Tago, Junitiro (1500) | Won 2-0 | +171586 |
| 2sealed | 125 | Yabe, Kotaro (1518) | Won 2-0 | +171603 |
| 3sealed | 85 | Isobe, Masato (1573) | Won 2-1 | +171620 |
| 4sealed | 41 | Matsumoto, Hirotoshi (1535) | Lost 1-2 | -191601 |
| 5sealed | 71 | Hirabayashi, Kazuya (1768) | Lost 1-2 | -151586 |
| 6sealed | 108 | Nikkuni, Fumihito (1536) | Lost 1-2 | -191567 |
| top | average opponent: 1572record: 3-3 | new rating: 1567 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 129 | Suzuki, Masatsuna (1693) | Won 2-1 | +201584 |
| 3sealed | 68 | Yokosuka, Tomohiro (1818) | Lost 0-2 | -141570 |
| 4sealed | 151 | Sogabe, Ippei (1572) | Won 2-0 | +181588 |
| 5sealed | 66 | Sugiyama, Naohiro (1540) | Lost 1-2 | -191569 |
| top | average opponent: 1656record: 2-2 | new rating: 1569 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 114 | Yanada, Kenji (1537) | Won 2-0 | +171593 |
| 4block | 31 | Maehata, Yasuhito (1542) | Lost 0-2 | -191574 |
| 5block | 69 | Ietsune, Dai (1539) | Won 2-1 | +181592 |
| 6block | 38 | Kishi, Tatsunori (1554) | Lost 0-2 | -191573 |
| 7block | 100 | Ishikawa, Ren (1684) | Won 2-1 | +201593 |
| 8block | 103 | Hojo, Naomasa (1760) | Won 2-1 | +211614 |
| 9block | 26 | Mori, Katsuhiro (1870) | Lost 1-2 | -131601 |
| 10block | 86 | Okuda, Masateru (1589) | Lost 0-2 | -191582 |
| 11block | 92 | Konagai, Ryota (1538) | Lost 0-2 | -181564 |
| top | average opponent: 1624record: 4-5 | new rating: 1564 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | Okuda, Masateru (1520) | Won 2-1 | +181521 |
| 2sealed | 76 | Taru, Genki (1651) | Lost 0-2 | -161505 |
| 3sealed | 122 | Koyama, Kenta (1483) | Won 2-1 | +181523 |
| 4sealed | 96 | Kawamoto, Mikihito (1466) | Won 2-0 | +171540 |
| 5sealed | 102 | Kaneko, Yoshiyuki (1485) | Won 2-0 | +171557 |
| 6sealed | 30 | Sawada, Naoya (1539) | Won 2-0 | +181575 |
| 7sealed | 45 | Matsumura, Takehiko (1556) | Lost 0-2 | -191556 |
| 8sealed | 39 | Komiyama, Hideki (1652) | Won 2-0 | +201576 |
| top | average opponent: 1544record: 6-2 | new rating: 1576 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Sakamoto, Kazuya (1524) | Won 2-1 | +181518 |
| 2sealed | 110 | Kunisato, Ebie (1585) | Won 2-0 | +201538 |
| 3sealed | 84 | Sugiki, Takafumi (1582) | Lost 1-2 | -181520 |
| 4sealed | 128 | Wakuda, Hiroyasu (1519) | Won 2-0 | +181538 |
| 5sealed | 105 | Furuya, Masashi (1536) | Lost 0-2 | -181520 |
| 6sealed | 97 | Ogiyama, Shuuji (1537) | Lost 1-2 | -171503 |
| top | average opponent: 1547record: 3-3 | new rating: 1503 | ||