Yamagata, Hiroki
Current rating: 1520
Record: 69-76-2
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2022
- 2023
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 119 | Kumagai, Riku (1905) | Won 2-0 | +241527 |
| 2pioneer | 4 | Yasooka, Shota (2049) | Won 2-1 | +271554 |
| 3pioneer | 2 | Nakao, Motohiko (1863) | Lost 0-2 | -121542 |
| 4pioneer | 46 | Peng, Shicheng (1519) | Won 2-1 | +171559 |
| 5pioneer | 23 | Fujino, Yoshitaka (1713) | Won 2-1 | +211580 |
| 6pioneer | 44 | Oiso, Kenji (1893) | Lost 1-2 | -121568 |
| 7pioneer | 37 | Shimamura, Kazushige (1601) | Lost 1-2 | -181550 |
| 8pioneer | 29 | Park, Geon-Wook (1705) | Lost 0-1 | -151535 |
| 10pioneer | 28 | Hieda, Yosuke (1417) | Won 2-0 | +161551 |
| 11pioneer | 20 | Tanaka, Yu (1673) | Lost 1-2 | -161535 |
| 12pioneer | 22 | Inui, Takashi (1704) | Lost 0-2 | -151520 |
| top | average opponent: 1731record: 5-6 | new rating: 1520 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 81 | Sakuma, Takamichi (1412) | Won 2-0 | +161529 |
| 2pioneer | 52 | kamezaki, sho (1495) | Won 2-0 | +181547 |
| 3pioneer | 21 | Terasawa, Kazuya (1811) | Lost 0-2 | -141533 |
| 4pioneer | 37 | Nakashima, Shunichi (1807) | Lost 1-2 | -131520 |
| 5pioneer | 71 | Asano, Tatsuro (1570) | Won 2-1 | +191539 |
| 6pioneer | 25 | Fujimoto, Tomoya (1515) | Lost 0-2 | -181521 |
| 7pioneer | 52 | Chiku, Kotaro (1510) | Lost 0-2 | -181503 |
| top | average opponent: 1589record: 3-4 | new rating: 1503 | ||
| Regional Championships Yokohama 2023 (ONE standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Kumagai, Riku (1994) | Won 2-0 | +271528 |
| 2standard | 32 | Kamo, Riki (1922) | Lost 1-2 | -121516 |
| 3standard | 51 | Harane, Kenta (1845) | Lost 1-2 | -121504 |
| 4standard | 72 | Ikawa, Yoshihiko (1875) | Won 2-1 | +251529 |
| 5standard | 44 | Katou, Yuuta (1665) | Lost 0-2 | -161513 |
| top | average opponent: 1860record: 2-3 | new rating: 1513 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 54 | Usuzawa, Yuuki (1541) | Won 2-0 | +201482 |
| 2pioneer | 16 | Matsuura, Takumi (1870) | Lost 0-2 | -111471 |
| 3pioneer | 49 | Sugizaki, Shunsuke (1579) | Lost 1-2 | -161455 |
| 4pioneer | 83 | Nakashima, Atsushi (1821) | Won 2-1 | +241479 |
| 5pioneer | 67 | Karatsu, Yoshifumi (1702) | Won 2-1 | +221501 |
| 6pioneer | 33 | Takahashi, Ryo (1671) | Won 2-0 | +211522 |
| 7pioneer | 28 | Hasegawa, Atusi (1364) | Lost 0-2 | -211501 |
| top | average opponent: 1650record: 4-3 | new rating: 1501 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 183 | Tsukahara, Kazuto (1624) | Won 2-1 | +211512 |
| 4pioneer | 204 | Araki, Youhei (1491) | Lost 0-2 | -191493 |
| 5pioneer | 348 | Goryo, Akira (1633) | Lost 0-2 | -151478 |
| 6pioneer | 410 | Kirino, Ryohei (1635) | Lost 0-2 | -161462 |
| top | average opponent: 1595record: 1-3 | new rating: 1462 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 250 | Maenosono, Kenta (1567) | Lost 0-2 | -171512 |
| 4standard | 432 | Tsujimoto, Hideki (1474) | Lost 1-2 | -191493 |
| 5standard | 687 | Saitou, Takaya (1409) | Won 2-1 | +161509 |
| 6standard | 401 | Nagaoka, Yu (1489) | Lost 0-2 | -181491 |
| top | average opponent: 1485record: 1-3 | new rating: 1491 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 261 | Tsuchiya, Mihoko (1556) | Lost 0-2 | -181528 |
| 4sealed | 311 | Katsu, Masahiro (1489) | Lost 0-2 | -181510 |
| 5sealed | 708 | Agatsuma, Shotaro (1504) | Won 2-0 | +181528 |
| 6sealed | 645 | Yamazaki, Hiroyuki (1637) | Won 2-0 | +201548 |
| 7sealed | 395 | Kobayashi, Atsumu (1514) | Lost 0-2 | -191529 |
| top | average opponent: 1540record: 2-3 | new rating: 1529 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1606 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 428 | Onoda, Kenji (1582) | Lost 1-2 | -181588 |
| 4modern | 722 | Tomita, Hiroki (1354) | Lost 0-2 | -231565 |
| 5modern | 701 | Komiyama, Kai (1498) | Lost 0-2 | -191546 |
| top | average opponent: 1478record: 0-3 | new rating: 1546 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1618 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 446 | Sato, Yusei (1763) | Lost 1-2 | -151603 |
| 4standard | 378 | Suzuki, Kazushige (1740) | Lost 1-2 | -161587 |
| 5standard | 518 | Aota, Hidekazu (1550) | Won 2-0 | +181605 |
| 6standard | 555 | Saiga, Noriaki (1592) | Won 2-1 | +181623 |
| 7standard | 224 | Sun, Guolong (1709) | Lost 1-2 | -171606 |
| top | average opponent: 1671record: 2-3 | new rating: 1606 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 369 | Kiyono, Shoya (1609) | Won 2-1 | +191557 |
| 4standard | 236 | Zhou, Zhaoqi (1469) | Draw 1-1 | -21555 |
| 5standard | 291 | Kusakabe, Yuuga (1547) | Won 2-1 | +181573 |
| 6standard | 237 | Qian, Zhengrui (1464) | Won 2-1 | +161589 |
| 7standard | 210 | Zhi, Yimin (1850) | Lost 0-2 | -131576 |
| 8standard | 271 | Kojima, Yoshifumi (1543) | Won 2-1 | +171593 |
| 9standard | 54 | Nakamura, Takehiro (1620) | Lost 1-2 | -171576 |
| 10standard | 118 | Hirayama, Shigetaka (1807) | Won 2-0 | +221598 |
| 11standard | 73 | Ohki, Tatsuhiko (1904) | Lost 1-2 | -131585 |
| 12standard | 111 | Masuda, Masahito (1532) | Lost 1-2 | -191566 |
| 13standard | 133 | Kanda, Nobuaki (1491) | Won 2-0 | +171583 |
| 14standard | 105 | Hoshide, Naonari (1608) | Won 2-1 | +181601 |
| 15standard | 79 | Yoshida, Yutarou (1539) | Won 2-0 | +171618 |
| top | average opponent: 1614record: 8-4-1 | new rating: 1618 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 414 | Esaki, Keisuke (1737) | Lost 1-2 | -141514 |
| 4sealed | 478 | Kobayashi, Kazutaka (1682) | Lost 0-2 | -151499 |
| 5sealed | 807 | Takakuwa, Akihiro (1608) | Won 2-0 | +201519 |
| 6sealed | 606 | Takahashi, Kei (1612) | Won 2-0 | +191538 |
| 7sealed | 451 | Inoue, Takuto (1567) | Won 2-1 | +191557 |
| 8sealed | 136 | Soma, Kensuke (1493) | Lost 0-2 | -191538 |
| top | average opponent: 1616record: 3-3 | new rating: 1538 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 277 | Sawada, Tetsushi (1642) | Lost 0-2 | -171564 |
| 4sealed | 655 | Inokuchi, Masaki (1473) | Lost 1-2 | -201544 |
| 5sealed | 629 | Mori, Yuki (1548) | Won 2-0 | +191563 |
| 6sealed | 575 | Deng, Yunan (1634) | Lost 0-2 | -171546 |
| 7sealed | 740 | Matsumoto, Masataka (1652) | Lost 1-2 | -161530 |
| 8sealed | 768 | Yamanaka, Shouki (1521) | Won 2-0 | +181548 |
| 9sealed | 628 | Hatta, Tetsuya (1458) | Lost 1-2 | -201528 |
| top | average opponent: 1561record: 2-5 | new rating: 1528 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 208 | Matsumoto, Kazuya (1571) | Won 2-0 | +181575 |
| 4modern | 83 | Okamoto, Yasutaka (1467) | Draw 1-1 | -21573 |
| 5modern | 177 | Iwasa, Takuma (1558) | Won 2-0 | +181591 |
| 6modern | 86 | Ono, Makoto (1582) | Won 2-0 | +181609 |
| 7modern | 46 | Shimizu, Keisuke (1560) | Won 2-0 | +171626 |
| 8modern | 22 | Peng, Jianjia (1776) | Lost 1-2 | -151611 |
| 9modern | 88 | Yoshizawa, Kohei (1615) | Won 2-0 | +181629 |
| 10modern | 50 | Kanda, Shigeki (1582) | Lost 0-2 | -191610 |
| 11modern | 122 | Kawaguchi, Takashi (1745) | Lost 0-2 | -161594 |
| 12modern | 211 | Lee, Chao Yi (1606) | Lost 1-2 | -171577 |
| 13modern | 247 | Takamiya, Issei (1517) | Won 2-0 | +161593 |
| 14modern | 183 | Nakai, Sunao (1908) | Lost 0-2 | -121581 |
| top | average opponent: 1624record: 6-5-1 | new rating: 1581 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 154 | Ishihara, Masayuki (1406) | Lost 0-2 | -201497 |
| 3standard | 995 | Araki, Tatsunori (1593) | Won 2-0 | +201517 |
| 4standard | 380 | Chou, Takayuki (1685) | Won 2-0 | +211538 |
| 5standard | 252 | Matsuura, Fumiya (1499) | Lost 1-2 | -191519 |
| 6standard | 647 | Mitsui, Hideo (1676) | Lost 0-2 | -151504 |
| 7standard | 762 | Nasu, Kouhei (1471) | Won 2-1 | +181522 |
| 8standard | 613 | Urasaki, Takayuki (1589) | Won 2-1 | +191541 |
| 9standard | 521 | Kondo, Fumiya (1533) | Won 2-1 | +181559 |
| 10standard | 340 | Yamane, Yuuki (1519) | Lost 0-2 | -191540 |
| 11standard | 360 | Schwenk, Ryan (1446) | Lost 1-2 | -201520 |
| 12standard | 352 | Arita, Kouichirou (1624) | Won 2-1 | +201540 |
| 13standard | 331 | Yasunaka, Shinichi (1468) | Lost 0-2 | -191521 |
| 14standard | 304 | Robb, Justin (1639) | Won 2-1 | +201541 |
| 15standard | 265 | Maseguchi, Masashi (1428) | Won 2-0 | +161557 |
| top | average opponent: 1541record: 8-6 | new rating: 1557 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 308 | Miura, Seitarou (1515) | Won 2-1 | +181530 |
| 3standard | 700 | Ueno, Hideto (1325) | Won 2-0 | +151545 |
| 4standard | 138 | Tanji, Kensuke (1535) | Lost 0-2 | -191526 |
| 5standard | 453 | Sugaya, Hironobu (1947) | Lost 1-2 | -101516 |
| 6standard | 741 | Kosuga, Shuhei (1414) | Won 2-0 | +161532 |
| 7standard | 463 | Kajiya, Tatsuki (1523) | Lost 0-2 | -181514 |
| 8standard | 682 | Takahashi, Kei (1607) | Won 2-1 | +191533 |
| 9standard | 649 | Kamoi, Ryo (1645) | Lost 1-2 | -161517 |
| top | average opponent: 1564record: 4-4 | new rating: 1517 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 65 | Takeuchi, Ryota (1798) | Lost 1-2 | -141529 |
| 4sealed | 341 | Naitou, Hisashi (1500) | Won 2-0 | +181547 |
| 5sealed | 376 | Aoi, Masashi (1501) | Lost 1-2 | -191528 |
| 6sealed | 507 | Sunada, Shougo (1760) | Lost 1-2 | -141514 |
| 7sealed | 650 | Kashi, Touru (1486) | Won 2-0 | +181532 |
| 8sealed | 417 | Matsuoka, Shingo (1456) | Lost 1-2 | -201512 |
| top | average opponent: 1583record: 2-4 | new rating: 1512 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 370 | Takamizawa, Shigeyoshi (1443) | Won 2-1 | +171521 |
| 2standard | 232 | Hattori, Kosuke (1490) | Won 2-1 | +181539 |
| 3standard | 418 | Sunada, Shougo (1773) | Won 2-0 | +221561 |
| 4standard | 172 | Fukuhara, Akinori (1522) | Lost 0-2 | -191542 |
| 5standard | 451 | Masukado, Kenta (1603) | Lost 1-2 | -171525 |
| 6standard | 379 | Furukawa, Kazuya (1558) | Won 2-0 | +191544 |
| 7standard | 523 | Houjo, Chihiro (1297) | Won 2-0 | +131557 |
| 8standard | 325 | Koga, Ryuji (1547) | Won 2-0 | +181575 |
| 9standard | 209 | Itami, Toshimitsu (1575) | Won 2-0 | +181593 |
| 10standard | 116 | Endo, Jun'Ichi (1789) | Lost 0-2 | -141579 |
| 11standard | 117 | Nishimura, Yoshiyasu (1532) | Lost 1-2 | -191560 |
| 13standard | 109 | Satou, Takahisa (1579) | Lost 0-2 | -181542 |
| 14standard | 122 | Sugita, Wataru (1541) | Won 2-1 | +181560 |
| 15standard | 115 | Tei, Shinri (1595) | Lost 1-2 | -171543 |
| top | average opponent: 1560record: 8-6 | new rating: 1543 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Kobayashi, Takeshi (1445) | Won 2-1 | +171500 |
| 2sealed | 114 | Nakata, Akihito (1518) | Won 2-1 | +181518 |
| 3sealed | 217 | Wada, Yuusaku (1489) | Won 2-0 | +181536 |
| 4sealed | 23 | Wang, Chih Ming (1647) | Won 2-0 | +201556 |
| 5sealed | 43 | Chu, Huseh Lan (1513) | Lost 0-2 | -191537 |
| 6sealed | 136 | Mitsuhashi, Shou (1509) | Lost 1-2 | -181519 |
| 7sealed | 172 | Taniguchi, Hiroaki (1725) | Lost 0-2 | -151504 |
| top | average opponent: 1549record: 4-3 | new rating: 1504 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 279 | Tamaki, Ryohei (1426) | Lost 1-2 | -191481 |
| 2modern | 423 | Abe, Genta (1486) | Won 2-0 | +181499 |
| 3modern | 328 | Oonishi, Tatsuya (1478) | Lost 0-2 | -191480 |
| 4modern | 434 | Monzen, Hidetake (1468) | Won 2-1 | +181498 |
| 5modern | 361 | Maeyama, Yuuhei (1498) | Won 2-0 | +181516 |
| 6modern | 303 | Masutani, Kazuhiro (1517) | Lost 0-2 | -181498 |
| 7modern | 318 | Kawada, Chihiro (1593) | Lost 0-2 | -161482 |
| 8modern | 303 | Tutumi, Kento (1481) | Lost 0-2 | -181464 |
| 9modern | 275 | Tanaka, Yosuke (1514) | Won 2-0 | +191483 |
| top | average opponent: 1496record: 4-5 | new rating: 1483 | ||