Ishii, Hayato
Current rating: 1759 (#3468)

Grand Prix Chiba 2019 (M20 limited) starting rating: 1804
round table opponent (rating) result Δrating
1 71 Kozaki, Yosuke (1570) Lost 0-2 -221782
2 597 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
1 458 Fujimoto, Shun (1500) Lost 0-2 -241812
2 945 Horiyama, Hiroki (1484) Won 2-1 +121824
3 584 Katou, Takeru (1389) Won 2-1 +101834
4 468 Okada, Keita (1433) Won 2-0 +121846
5 384 Nose, Shunsuke (1852) Lost 0-2 -181828
6 518 Tani, Emi (1508) Lost 0-2 -241804
top average opponent: 1528record: 3-3 new rating: 1804

Grand Prix Tokyo 2016 (SOI standard) starting rating: 1892
round table opponent (rating) result Δrating
1 588 Takizawa, Ryouta (1538) Won 2-0 +121904
2 6 Iwakura, Tatsuro (1700) Lost 0-2 -221882
3 858 Hayashi, Shouya (1765) Lost 0-2 -201862
4 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
1 393 Takeda, Hiroshi (1500) Won 2-1 +121849
2 507 Nishizawa, Sora (1518) Won 2-0 +121861
3 66 Sun, Chuan (1518) Won 2-1 +121873
4 270 Yabumoto, Taroumaru (1555) Lost 1-2 -241849
5 269 Naka, Yoshihiro (1584) Lost 1-2 -221827
6 405 Tamber, Tobey (1776) Lost 0-2 -191808
7 859 Juumonji, Ryou (1688) Won 2-0 +151823
8 423 Ohashi, Gaku (1605) Won 2-0 +151838
9 424 Takahashi, Toshirou (1485) Won 2-0 +111849
10 147 Sasaki, Hideto (1530) Won 2-0 +131862
11 162 Baang, Johan (1580) Won 2-1 +131875
12 73 Matsumoto, Akihiro (1665) Won 2-1 +141889
13 112 Terada, Tadayoshi (1564) Lost 0-2 -241865
14 96 Ohki, Tatsuhiko (1638) Won 2-1 +141879
15 170 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
1 2309 Kanaya, Akihiro (1500) Won 2-1 +121862
2 2100 Uemura, Akihiro (1518) Lost 0-2 -251837
3 2281 Ihara, Akihiro (1361) Won 2-1 +101847
4 2156 Kageyama, Akihiro (1517) Won 2-1 +131860
5 2179 Yanagawa, Yuuki (1427) Won 2-0 +101870
6 2090 Oikawa, Ryusuke (1558) Won 2-1 +131883
7 2069 Inoue, Yuusuke (1642) Lost 0-2 -231860
8 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
1 339 Hamada, Kouji (1428) Won 2-1 +111865
2 100 Kashiwa, Tatsuya (1766) Won 2-1 +161881
3 52 Yoshioka, Norisato (1494) Lost 0-2 -251856
4 271 Asakura, Takumi (1409) Won 2-0 +101866
5 201 Tsuruta, Tomoyuki (1522) Won 2-0 +121878
6 107 Yokoyama, Takaya (1530) Won 2-1 +121890
7 33 Itou, Taisei (1537) Lost 0-2 -241866
8 125 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
1 15 Tsutai, Koutarou (1385) Won 2-0 +121743
2 119 Samejima, Ippei (1462) Won 2-0 +131756
3 55 Nagai, Toshiki (1536) Won 2-0 +141770
4 38 Lee, Shi Tian (1965) Lost 0-2 -151755
5 55 Imura, Satoshi (1563) Won 2-0 +151770
6 98 Cho, Bu-Hong (1769) Won 2-1 +181788
7 19 Suzuki, Nobuyoshi (1812) Won 2-1 +181806
8 40 Emori, Shinichi (1573) Won 2-0 +141820
9 14 Sato, Hisao (1569) Won 2-0 +131833
10 96 Sei, Makoto (1643) Won 2-0 +151848
11 106 Ito, Keigo (1707) Won 2-1 +151863
12 16 Honda, Atsuo (1803) Won 2-1 +171880
13 29 Nakai, Sunao (1662) Lost 0-2 -221858
14 45 Kasuga, Ryosuke (1664) Lost 1-2 -211837
15 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
2 73 Kondou, Keiichi (1517) Won 2-0 +131806
3 182 Shiba, Yunosuke (1528) Lost 0-2 -231783
4 162 Kawasaki, Hirotaka (1532) Lost 1-2 -221761
5 219 Yano, Keitarou (1485) Won 2-0 +131774
6 201 Hashimoto, Masatoshi (1544) Lost 1-2 -221752
7 213 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
1 265 Noguchi, Shun (1500) Won 2-1 +131790
2 273 Kojima, Tatuya (1518) Won 2-0 +131803
3 15 Kimura, Shigeki (1474) Lost 1-2 -241779
4 157 Tomizawa, Shoudai (1569) Won 2-1 +151794
5 104 Suzuki, Yuuji (1639) Won 2-0 +151809
6 99 Ideue, Yuuki (1479) Won 2-0 +121821
7 68 Kobayashi, Akihiro (1519) Won 2-1 +131834
8 150 Sugiyama, Yuya (1845) Lost 1-2 -181816
9 224 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
1 319 Okuda, Masateru (1512) Won 2-0 +141794
2 26 Ishiguro, Masamitsu (1518) Won 2-0 +131807
3 240 Sasaki, Yuusuke (Hyogo) (1728) Lost 0-2 -201787
4 191 Toriuchi, Daizo (1453) Won 2-1 +121799
5 210 Ozawa, Takeshi (1846) Won 2-0 +191818
6 121 Kishi, Hideyuki (1510) Won 2-0 +131831
7 110 Kawazoe, Keiichi (1565) Won 2-1 +131844
8 41 Furukawa, Hiroki (1630) Lost 0-2 -221822
9 130 Tanahashi, Masayasu (1776) Won 2-1 +171839
10 68 Harano, Takahiro (1674) Lost 1-2 -211818
11 59 Aoki, Ryousuke (1746) Lost 1-2 -191799
12 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
4 101 Tsukamoto, Tatsushi (1436) Won 2-0 +121794
5 11 Ikeda, Tsuyoshi (1844) Draw 1-1 01794
6 30 Obata, Shiou (1387) Lost 0-2 -251769
7 79 Date, Hideyuki (1561) Lost 0-2 -211748
8 142 Noro, Hitoshi (1537) Won 2-0 +141762
9 95 Sato, Hiroshi (1551) Won 2-1 +141776
10 52 Senba, Kotaro (1659) Draw 1-1 -21774
11 58 Chiba, Akio (1717) Won 2-0 +171791
12 44 Oosaka, Yuusuke (1800) Won 2-1 +181809
13 33 Yamazaki, Shun (1520) Lost 1-2 -231786
14 2 Chijimi, Keiichi (1712) Lost 1-2 -191767
15 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
2 1 Takahira, Shunsuke (1518) Lost 1-2 -231776
3 347 Obata, Shiou (1389) Won 2-0 +121788
4 270 Watanabe, Takumi (1519) Won 2-0 +131801
5 184 Kidera, Seita (1482) Lost 1-2 -241777
6 252 Aizawa, Takeshi (1465) Won 2-0 +131790
7 143 Kato, Keitaro (1541) Won 2-0 +131803
8 167 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
3 33 Miyazono, Takeshi (1541) Lost 1-2 -231807
4 157 Kubomura, Masaaki (1406) Won 2-0 +111818
5 56 Iwahashi, Kouki (1538) Won 2-0 +131831
6 50 Kim, Cynic (1713) Lost 0-2 -201811
7 48 Nishiwaki, Masato (1436) Won 2-0 +111822
8 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
2 60 Hirabayashi, Kazuya (1687) Won 2-0 +181720
3 101 Ueno, Takamasa (1573) Won 2-1 +151735
4 33 Kuo, Tzu-Ching (1872) Won 2-0 +211756
5 20 Yasufuku, Akihiro (1550) Won 2-0 +141770
6 19 Momose, Kazuyuki (1777) Won 2-1 +181788
7 10 Gotou, Hiroaki (1762) Won 2-0 +181806
8 4 Yamamoto, Kentaro (1878) Lost 0-2 -171789
9 10 Vidugiris, Gaudenis (1820) Lost 1-2 -171772
10 42 Gotou, Hiroaki (1737) Won 2-1 +171789
11 23 Taru, Genki (1835) Won 2-1 +191808
12 15 Suzuki, Nobuyoshi (1782) Won 2-0 +171825
13 17 Watanabe, Yuuya (1982) Lost 0-2 -151810
15 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
4 36 Morita, Masahiko (2042) Lost 0-2 -121648
5 100 Nakamura, Yuichiro (1647) Won 2-1 +181666
6 29 Kinoshita, Atsushi (1487) Won 2-0 +151681
7 52 Akiyama, Takashi (1654) Won 2-1 +181699
8 140 Kaga, Hiroyuki (1578) ID 01699
9 9 Tashiro, Yoshiaki (1708) Won 2-0 +181717
10 6 Seki, Keita (1706) Won 2-0 +181735
11 23 Ruel, Olivier (2030) Lost 1-2 -131722
12 25 Fujimoto, Taichi (1769) Lost 1-2 -171705
13 19 Tanahashi, Masayasu (1781) Lost 1-2 -171688
14 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
4 29 Se, Atsuo (1488) Won 2-0 +161600
5 10 Ishikawa, Ren (1881) Lost 1-2 -131587
6 31 Kaneko, Masami (1786) Lost 1-2 -151572
7 96 Sugimura, Yoshiyasu (1495) Won 2-0 +171589
8 47 Horimoto, Takeshi (1509) Won 2-1 +171606
9 46 Sasahara, Yasufumi (1716) ID 01606
10 50 Yamada, Yuma (1591) Lost 1-2 -191587
11 59 Yamaguchi, Hiroshi (1554) Draw 1-1 01587
12 56 Gotou, Hiroaki (1600) Won 2-0 +181605
13 46 Oodan, Takeshi (1657) Won 2-0 +191624
14 36 Akai, Satoshi (1643) Won 2-0 +181642
15 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
2 14 Takesue, Chikara (1588) Lost 0-2 -181566
3 174 Sato, Shunnsuke (1500) Won 2-1 +171583
4 124 Tanaka, Yu (1546) Won 2-0 +171600
5 157 Yazawa, Yuu (1536) Draw 1-1 -11599
6 115 Yamamoto, Shouhei (1823) Draw 1-1 +41603
7 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
2 16 Okada, Kou (1679) Lost 1-2 -171619
3 106 Suzuki, Masatsuna (1642) Lost 0-2 -181601
4 133 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
3 53 Oomura, Tomoya (1537) Lost 1-2 -201650
4 129 Nishitani, Yasunobu (1535) Won 2-0 +151665
5 105 Hanyu, Yusuke (1511) Lost 1-2 -201645
6 142 Okada, Norihiro (1526) Won 2-0 +161661
7 112 Kushigami, Yasuhiro (1536) Won 2-1 +151676
8 74 Matsui, Hiroyuki (1557) Lost 1-2 -201656
9 120 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
1 102 Sarton, Clement (1529) Won 2-1 +161643
2 191 Bornarel, Nicolas (1759) Won 2-1 +201663
3 156 Murakami, Yuuki (Miyagi) (1769) Won 2-0 +201683
4 151 Thompson, Mike (1828) Won 2-0 +211704
5 68 Tomelitsch, Patrick (1825) Won 2-1 +201724
6 146 Herberholz, Mark (1983) Lost 0-2 -131711
7 44 Chan, Tiago (2028) Lost 1-2 -131698
8 53 Enevoldsen, Thomas (1762) Lost 0-2 -171681
9 47 Fennell, Christopher (1874) Lost 0-2 -141667
10 33 Preto, Sergio (1657) Won 2-0 +181685
11 34 Vandover, Sean (1560) Won 2-0 +161701
12 8 Stein, Sam (1810) Lost 0-2 -171684
13 60 Enevoldsen, Thomas (1741) Won 2-1 +201704
14 60 Fujita, Osamu (1895) Lost 0-2 -151689
15 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
2 73 Aoki, Ryousuke (1607) Lost 1-2 -191647
3 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
2 27 Sato, Rei (1640) Lost 0-2 -181622
3 96 Gotou, Takahiro (1497) Won 2-0 +161638
4 110 Hirokawa, Tatsuya (1521) Won 2-0 +161654
5 64 Matsuyama, Satoshi (1506) Won 2-0 +151669
6 23 Miura, Seitarou (1552) Draw 1-1 -21667
7 52 Kamei, Shunsuke (1678) Won 2-0 +181685
8 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
2 57 Hashizume, Nobuyuki (1525) Lost 0-2 -191573
3 141 Tsuchiya, Shigetaka (1462) Won 2-0 +161589
4 111 Tamai, Katsuyoshi (1467) Lost 0-2 -201569
5 136 Mukai, Masayuki (1498) Won 2-0 +171586
6 74 Kawamura, Akihiro (1541) Won 2-1 +171603
7 77 Nakashiro, Mizuki (1633) Won 2-1 +181621
8 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
1 123 Fujimori, Kouichi (1500) Won 2-1 +161617
2 163 Harita, Masaru (1544) Lost 1-2 -191598
3 205 Takawashi, Shun'Ichi (1503) Won 2-0 +161614
4 122 Kim, Min-su (Japan) (1620) Lost 0-2 -181596
5 213 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
2 32 Ito, Masahiro (1518) Lost 1-2 -191548
3 292 Ohara, Yoshirou (1561) Lost 0-2 -181530
4 414 Okamoto, Kazuya (1482) Won 2-0 +171547
5 242 Nishiwaki, Masato (1424) Won 2-1 +161563
6 150 Higaki, Takao (1738) Won 2-1 +211584
7 146 Ogawa, Syunsuke (1665) Won 2-0 +201604
8 110 Matsuoka, Tomohide (1574) Won 2-0 +171621
9 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
1 90 Tago, Junitiro (1500) Won 2-0 +171586
2 125 Yabe, Kotaro (1518) Won 2-0 +171603
3 85 Isobe, Masato (1573) Won 2-1 +171620
4 41 Matsumoto, Hirotoshi (1535) Lost 1-2 -191601
5 71 Hirabayashi, Kazuya (1768) Lost 1-2 -151586
6 108 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
2 129 Suzuki, Masatsuna (1693) Won 2-1 +201584
3 68 Yokosuka, Tomohiro (1818) Lost 0-2 -141570
4 151 Sogabe, Ippei (1572) Won 2-0 +181588
5 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
3 114 Yanada, Kenji (1537) Won 2-0 +171593
4 31 Maehata, Yasuhito (1542) Lost 0-2 -191574
5 69 Ietsune, Dai (1539) Won 2-1 +181592
6 38 Kishi, Tatsunori (1554) Lost 0-2 -191573
7 100 Ishikawa, Ren (1684) Won 2-1 +201593
8 103 Hojo, Naomasa (1760) Won 2-1 +211614
9 26 Mori, Katsuhiro (1870) Lost 1-2 -131601
10 86 Okuda, Masateru (1589) Lost 0-2 -191582
11 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
1 188 Okuda, Masateru (1520) Won 2-1 +181521
2 76 Taru, Genki (1651) Lost 0-2 -161505
3 122 Koyama, Kenta (1483) Won 2-1 +181523
4 96 Kawamoto, Mikihito (1466) Won 2-0 +171540
5 102 Kaneko, Yoshiyuki (1485) Won 2-0 +171557
6 30 Sawada, Naoya (1539) Won 2-0 +181575
7 45 Matsumura, Takehiko (1556) Lost 0-2 -191556
8 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
1 53 Sakamoto, Kazuya (1524) Won 2-1 +181518
2 110 Kunisato, Ebie (1585) Won 2-0 +201538
3 84 Sugiki, Takafumi (1582) Lost 1-2 -181520
4 128 Wakuda, Hiroyasu (1519) Won 2-0 +181538
5 105 Furuya, Masashi (1536) Lost 0-2 -181520
6 97 Ogiyama, Shuuji (1537) Lost 1-2 -171503
top average opponent: 1547record: 3-3 new rating: 1503