Hosaka, Yoshiteru
Current rating: 1757 (#3574)
Record: 73-44-4
Grand Prix Yokohama 2013Grand Prix Kobe 2014Grand Prix Shizuoka 2015Grand Prix Kyoto 2015Grand Prix Chiba 2015Grand Prix Lille 2015Grand Prix Nagoya 2016Grand Prix Tokyo 2016Grand Prix Chiba 2016Grand Prix Kobe 2017Grand Prix Chiba 2018Grand Prix Shizuoka 2018 (legacy)Grand Prix Yokohama 2019Grand Prix Chiba 2019
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1774 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 253 | Ota, Yusuke 7122 (1500) | Won 2-1 | +131787 |
| 2sealed | 218 | Soh, Terry (1849) | Won 2-1 | +191806 |
| 3sealed | 362 | Morita, Yo (1714) | Won 2-1 | +171823 |
| 4sealed | 4 | Ninomiya, Souta (1719) | Lost 0-2 | -201803 |
| 5sealed | 289 | Yoshimura, Akira (1552) | Lost 0-2 | -231780 |
| 6sealed | 641 | Iijima, Satoshi (1480) | Lost 0-2 | -231757 |
| top | average opponent: 1636record: 3-3 | new rating: 1757 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1842 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 489 | Shiosaki, Tatsuya (1474) | Lost 0-2 | -241818 |
| 2modern | 943 | Yokota, Naoto (1538) | Won 2-0 | +131831 |
| 3modern | 567 | Takahashi, Ryunosuke (1362) | Won 2-0 | +101841 |
| 4modern | 761 | Ohmachi, Masato (1586) | Lost 0-2 | -221819 |
| 5modern | 817 | Sato, Yuta (1497) | Lost 1-2 | -241795 |
| 6modern | 800 | Kudo, Koichi (1641) | Lost 0-2 | -211774 |
| top | average opponent: 1516record: 2-4 | new rating: 1774 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1863 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 334 | Kent, Jenista (1500) | Won 2-0 | +121875 |
| 2legacy | 289 | Kawano, Junichi (1662) | Lost 0-2 | -221853 |
| 3legacy | 482 | Nishiyama, Kazuki (1326) | Won 2-0 | +91862 |
| 4legacy | 242 | Irie, Shun (1458) | Lost 0-2 | -251837 |
| 5legacy | 372 | Nakada, Shin'ya (1495) | Won 2-1 | +121849 |
| 6legacy | 251 | Ito, Takuya (1518) | Won 2-1 | +121861 |
| 7legacy | 273 | Fujitani, Masahiro (1504) | Won 2-1 | +121873 |
| 8legacy | 141 | Hirano, Yuu (1557) | Won 2-0 | +121885 |
| 9legacy | 92 | Shoji, Keishi (1597) | Lost 0-2 | -231862 |
| 10legacy | 96 | Fukudome, Yuu (1764) | Lost 1-2 | -201842 |
| top | average opponent: 1538record: 6-4 | new rating: 1842 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1895 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 683 | Yamamoto, Akimasa (1706) | Won 2-1 | +151910 |
| 2sealed | 544 | Aizawa, Tamotsu (1512) | Won 2-1 | +111921 |
| 3sealed | 504 | Yamasaki, Yudai (1707) | Lost 0-2 | -221899 |
| 4sealed | 387 | Danjo, Hiroyuki (1463) | Lost 0-2 | -261873 |
| 5sealed | 534 | Nakao, Motohiko (1656) | Won 2-0 | +151888 |
| 6sealed | 390 | Takahashi, Ryo 8120 (1507) | Lost 0-2 | -251863 |
| top | average opponent: 1592record: 3-3 | new rating: 1863 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1766 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 729 | Yamanaka, Masaya (1500) | Won 2-0 | +131779 |
| 2modern | 101 | Kato, Satoshi (1601) | Won 2-0 | +151794 |
| 3modern | 223 | Jinnai, Ryosuke (1485) | Won 2-1 | +131807 |
| 4modern | 302 | Mizutani, Yoshinobu (1465) | Won 2-0 | +121819 |
| 5modern | 90 | Chew, Kelvin (2218) | Won 2-1 | +251844 |
| 6modern | 30 | Itazu, Yoshihisa (1545) | Won 2-0 | +121856 |
| 7modern | 2 | Morikawa, Taichi (1731) | Won 2-1 | +161872 |
| 8modern | 8 | Miyake, Kyohei (2032) | Lost 1-2 | -151857 |
| 9modern | 26 | Kusunoki, Yuki (1591) | Lost 0-2 | -231834 |
| 10modern | 142 | Kamata, Kazuhiro (1725) | Won 2-1 | +161850 |
| 11modern | 56 | Segou, Kenji (1621) | Won 2-0 | +141864 |
| 12modern | 41 | Lee, Joon Soo (1911) | Won 2-1 | +191883 |
| 13modern | 15 | Taniguchi, Hiroaki (1766) | Lost 1-2 | -201863 |
| 14modern | 78 | Wada, Yuki (1869) | Won 2-1 | +181881 |
| 15modern | 22 | Lee, Kun-Hsin (1664) | Won 2-1 | +141895 |
| top | average opponent: 1715record: 12-3 | new rating: 1895 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 279 | Oka, Kenta (1393) | Won 2-0 | +141641 |
| 4legacy | 274 | Omonishi, Kojiro (1668) | Draw 1-1 | +11642 |
| 5legacy | 157 | Gao, Zhen Xing (1903) | Won 2-1 | +221664 |
| 6legacy | 73 | Kobayashi, Tatsuumi (1808) | Lost 0-2 | -151649 |
| 7legacy | 216 | Kawaramoto, Yuya (1489) | Won 2-0 | +151664 |
| 8legacy | 124 | Oonishi, Tatsuya (1601) | Won 2-1 | +171681 |
| 9legacy | 77 | Katou, Yuuta (1604) | Won 2-1 | +161697 |
| 10legacy | 39 | Oda, Kouichi (1555) | Won 2-0 | +161713 |
| 11legacy | 23 | Tokuyama, Kouta (1764) | Won 2-1 | +191732 |
| 12legacy | 13 | Ogawa, Yohei (1746) | Won 2-1 | +181750 |
| 13legacy | 7 | Aikawa, Yuki (1690) | Won 2-1 | +171767 |
| 14legacy | 4 | Liu, Jin (1797) | Lost 0-2 | -181749 |
| 15legacy | 12 | Koizumi, Yuma (1679) | Won 2-0 | +171766 |
| top | average opponent: 1669record: 10-2-1 | new rating: 1766 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1619 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 737 | Ishihara, Atsushi (1512) | Lost 1-2 | -201599 |
| 3standard | 793 | Mori, Ryo (1431) | Won 2-1 | +151614 |
| 4standard | 450 | Okada, Yuki (1566) | Draw 1-1 | 01614 |
| 5standard | 704 | Yoshimoto, Reiji (1512) | Won 2-0 | +161630 |
| 6standard | 486 | Kim, Chang-Hoi (1622) | Won 2-1 | +181648 |
| 7standard | 286 | Miyazono, Takeshi (1755) | Lost 0-2 | -171631 |
| 8standard | 499 | Tezuka, Yuuki (1536) | Lost 0-2 | -191612 |
| 9standard | 699 | Furujou, Takashi (1473) | Won 2-0 | +151627 |
| top | average opponent: 1551record: 4-3-1 | new rating: 1627 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1638 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 569 | Kamoi, Ryo (1579) | Lost 0-2 | -191619 |
| top | record: 0-1 | new rating: 1619 | ||
| Grand Prix Lille 2015 (legacy) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 250 | Hernandez Chiva, Ivan (1492) | Lost 0-2 | -211679 |
| 3legacy | 609 | Oey, Oliver (1494) | Lost 0-2 | -221657 |
| 4legacy | 548 | Sorensen, Mads (1531) | Lost 0-2 | -201637 |
| 5legacy | 649 | Visentin, Pierrick (1379) | Lost 1-2 | -221615 |
| 6legacy | 572 | RIGHI, Cyril (1443) | Lost 0-1 | -221593 |
| 7legacy | 496 | Van de Zande, Steven (1425) | Won 2-0 | +151608 |
| 8legacy | 387 | trabelssi, julien (1446) | Won 2-1 | +151623 |
| 9legacy | 310 | Lajus, Jerome (1460) | Won 2-0 | +151638 |
| top | average opponent: 1459record: 3-5 | new rating: 1638 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1677 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 1017 | Aoki, Daisuke (1502) | Lost 1-2 | -211656 |
| 3sealed | 1073 | Fujimoto, Koji (1516) | Won 2-0 | +151671 |
| 4sealed | 1127 | Ueda, Shigeki (1490) | Won 2-0 | +151686 |
| 5sealed | 958 | Suematsu, Takaaki (1790) | Won 2-0 | +201706 |
| 6sealed | 944 | Fujiya, Takahiro (1604) | Won 2-0 | +161722 |
| 7sealed | 865 | Maeda, Yasuyuki (1518) | Lost 1-2 | -211701 |
| 8sealed | 871 | Tunokake, Yunya (1528) | Won 2-1 | +141715 |
| 9sealed | 901 | Yokoyama, Kenichi (1551) | Won 2-1 | +151730 |
| 10draft | 99 | Rikitake, Tatsuya (1557) | Lost 1-2 | -211709 |
| 12draft | 107 | Nagai, Kousuke (1575) | Lost 1-2 | -201689 |
| 13draft | 157 | Nakamura, Yuta9375 (1579) | Won 2-1 | +161705 |
| 14draft | 99 | Muranaka, Hiroya (1624) | Lost 0-2 | -201685 |
| 15draft | 140 | Hayata, Shogo (1522) | Won 2-0 | +151700 |
| top | average opponent: 1566record: 8-5 | new rating: 1700 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 16 | Unknown(saitama), Unkn (1500) | Lost 1-2 | -201579 |
| 2legacy | 252 | Kouno, Takuya (1486) | Won 2-1 | +171596 |
| 3legacy | 398 | Tsutsumi, Shuuhei (1520) | Won 2-0 | +161612 |
| 4legacy | 229 | Yamawaki, Satoru (1475) | Won 2-0 | +161628 |
| 5legacy | 111 | Kawaguchi, Takahiro (1609) | Draw 1-1 | -11627 |
| 6legacy | 141 | Fuchita, Shouhei (1610) | Won 2-1 | +181645 |
| 7legacy | 81 | Yamamura, Yuma (1603) | Won 1-0 | +171662 |
| 8legacy | 49 | Matsumura, Toshikazu (1581) | Draw 1-1 | -11661 |
| 9legacy | 91 | Maruyama, Shouta (1572) | Won 2-1 | +161677 |
| top | average opponent: 1551record: 6-1-2 | new rating: 1677 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 754 | Kodaka, Tatsuya (1500) | Won 2-0 | +161629 |
| 2sealed | 783 | Matsushita, Shintaro (1551) | Lost 0-2 | -191610 |
| 3sealed | 958 | Takahashi, Osamu (1510) | Lost 0-2 | -201590 |
| 4sealed | 958 | Takamura, Morihiko (1555) | Lost 0-2 | -191571 |
| 5sealed | 1032 | Fukuoka, Naoto (1460) | Won 2-1 | +161587 |
| 6sealed | 943 | Mori, Yuki (1502) | Won 2-0 | +171604 |
| 7sealed | 856 | Higashida, Tetsuaki (1503) | Won 2-0 | +161620 |
| 8sealed | 793 | Tsuchihashi, Takuya (1460) | Lost 0-2 | -211599 |
| top | average opponent: 1505record: 4-4 | new rating: 1599 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 859 | Fukuda, Yuuki (1569) | Won 2-0 | +181583 |
| 2modern | 970 | Mizobuchi, Yuuji (1616) | Lost 1-2 | -171566 |
| 3modern | 1086 | Saito, Atsushi (1403) | Won 2-1 | +151581 |
| 4modern | 933 | Akabane, Jun (1518) | Won 2-0 | +171598 |
| 5modern | 777 | Kondou, Masayuki (1503) | Won 2-0 | +161614 |
| 6modern | 789 | Meguro, Yasuaki (1550) | Won 2-1 | +171631 |
| 7modern | 746 | Muto, Masaharu (1739) | Lost 1-2 | -161615 |
| 8modern | 767 | Ikeda, Kazuki (1600) | Won 2-1 | +171632 |
| 9modern | 745 | Suematsu, Takaaki (1574) | Lost 0-2 | -191613 |
| top | average opponent: 1563record: 6-3 | new rating: 1613 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 264 | Yamada, Ryuichiro (1608) | Won 2-1 | +201520 |
| 2sealed | 94 | Kubota, Kenta (1805) | Won 2-1 | +231543 |
| 3sealed | 20 | Hayashi, Shouya (1557) | Lost 1-2 | -181525 |
| 4sealed | 236 | Tsujikawa, Taiga (1587) | Won 2-1 | +191544 |
| 5sealed | 167 | Hirayama, Atsushi (1703) | Won 2-0 | +211565 |
| 6sealed | 47 | Noguchi, Shun (1563) | Lost 1-2 | -181547 |
| 7sealed | 116 | Furuichi, Youji (1533) | Won 2-0 | +181565 |
| 8sealed | 271 | Kasuga, Ryosuke (1582) | Won 2-1 | +181583 |
| 9sealed | 261 | Takasugi, Yuuki (1562) | Lost 1-2 | -181565 |
| top | average opponent: 1611record: 6-3 | new rating: 1565 | ||