Shiota, Akihiko
Current rating: 1778 (#2847)
Record: 54-36-2
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1775 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 571 | Yamazaki, Motohiro (1663) | Won 2-1 | +161791 |
| 2sealed | 267 | Takagishi, Hidefumi (1533) | Lost 1-2 | -231768 |
| 3sealed | 773 | Ueda, Yugo (1538) | Won 2-1 | +141782 |
| 4sealed | 383 | Suzuki, Tatsuya (1331) | Won 2-0 | +101792 |
| 5sealed | 337 | Takesue, Chikara (1739) | Won 2-0 | +171809 |
| 6sealed | 178 | Watanabe, Shouichi (1659) | Lost 0-2 | -211788 |
| 7sealed | 259 | Yamauchi, Takashi (1430) | Won 2-0 | +121800 |
| 8sealed | 216 | Kato, Akinobu (1582) | Lost 1-2 | -221778 |
| top | average opponent: 1560record: 5-3 | new rating: 1778 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1770 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 565 | Sakurai, Koki (1445) | Lost 1-2 | -241746 |
| 2modern | 791 | Tsuchiya, Yoshihiro (1373) | Won 2-0 | +121758 |
| 3modern | 859 | Satou, Kentarou (1425) | Won 2-1 | +121770 |
| 4modern | 725 | Matsushita, Takashi (1768) | Won 2-0 | +181788 |
| 5modern | 436 | Oei, Henry (1433) | Won 2-1 | +111799 |
| 6modern | 162 | Na, Jongwon (1698) | Lost 1-2 | -191780 |
| 7modern | 264 | Sugimoto, Junya (1539) | Won 2-0 | +131793 |
| 8modern | 336 | Nakamura, Yusuke9902 (1753) | Lost 1-2 | -181775 |
| top | average opponent: 1554record: 5-3 | new rating: 1775 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 42 | Okamoto, Yuuya (1794) | Won 2-0 | +231579 |
| 2legacy | 11 | Richards, Jacob (1631) | Won 2-1 | +191598 |
| 3legacy | 74 | Ota, Kyosuke (1494) | Won 2-1 | +161614 |
| 4legacy | 8 | Murao, Keisuke (1624) | Won 2-0 | +181632 |
| 5legacy | 41 | Fujita, Shunya (1564) | Lost 1-2 | -191613 |
| 6legacy | 156 | Miki, Kenta (1541) | Won 2-1 | +161629 |
| 7legacy | 83 | Yanagisawa, Yuta (1547) | Draw 1-1 | -11628 |
| 8legacy | 71 | Morinaga, Yousuke (1822) | Won 2-1 | +211649 |
| 9legacy | 41 | Hishida, Akinori (1519) | Won 2-0 | +161665 |
| 10legacy | 21 | Fukaya, Yuta (1535) | Won 2-0 | +161681 |
| 11legacy | 11 | Hatakeyama, Shota (1625) | Won 2-1 | +171698 |
| 12legacy | 7 | Terai, Tadayuki (1917) | Won 2-1 | +221720 |
| 13legacy | 4 | Kobayashi, Tatsuumi (1979) | Won 2-1 | +221742 |
| 14legacy | 3 | Hirosawa, Yuuta (2018) | Won 2-1 | +231765 |
| 15legacy | 3 | Shinohara, Gen 8933 (1660) | Won 2-0 | +161781 |
| Qlegacy | Kakumae, Teruya (2159) | Lost 0-2 | -111770 | |
| top | average opponent: 1714record: 13-2-1 | new rating: 1770 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 642 | Ogawa, Takashi (1566) | Lost 0-2 | -181540 |
| 2sealed | 824 | Banno, Kunihiko (1689) | Lost 0-2 | -151525 |
| 3sealed | 1031 | Tsunoda, Masaki (1448) | Won 2-1 | +161541 |
| 4sealed | 957 | Jinba, Yuusuke (1481) | Won 2-0 | +171558 |
| 5sealed | 779 | Kawase, Takeshi (1617) | Won 2-0 | +191577 |
| 6sealed | 375 | Yamauchi, Toru (1521) | Won 2-1 | +171594 |
| 7sealed | 248 | Yamagishi, Terutaka (1535) | Lost 1-2 | -191575 |
| 8sealed | 490 | Sato, Motomichi (1525) | Lost 0-2 | -191556 |
| top | average opponent: 1548record: 4-4 | new rating: 1556 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 622 | Sato, Ryohei2439 (1522) | Lost 1-2 | -191561 |
| 2legacy | 733 | Takahashi, Hikaru (1447) | Won 2-0 | +161577 |
| 3legacy | 782 | Kurihara, Mitsuaki (1581) | Won 2-0 | +181595 |
| 4legacy | 731 | Oka, Yosuke (1544) | Won 2-0 | +171612 |
| 5legacy | 530 | Tozuka, Kouta (1733) | Lost 1-2 | -161596 |
| 6legacy | 532 | Sasaki, Kazuo (1622) | Lost 0-2 | -171579 |
| 7legacy | 617 | Koretomo, Yuji (1419) | Lost 1-2 | -211558 |
| top | average opponent: 1552record: 3-4 | new rating: 1558 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1028 | Saito, Yoshihiro (1535) | Lost 1-2 | -191574 |
| 2sealed | 1332 | Kiyohara, Yuji (1410) | Won 2-1 | +151589 |
| 3sealed | 1093 | Garcia, Victor (1576) | Lost 1-2 | -191570 |
| 4sealed | 1215 | Yoshida, Mitsutaka (1086) | Won 2-0 | +101580 |
| top | average opponent: 1401record: 2-2 | new rating: 1580 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 625 | Kawaguchi, Tetsu (1496) | Won 2-0 | +171599 |
| 4legacy | 556 | Kim, Bo-young (1542) | Lost 0-2 | -191580 |
| 5legacy | 586 | Aida, Yasuki (1514) | Lost 0-2 | -191561 |
| 6legacy | 640 | Hasegawa, Shun-ya (1642) | Won 2-0 | +191580 |
| 7legacy | 639 | Okuda, Masateru (1511) | Won 2-1 | +171597 |
| 8legacy | 570 | Niitani, Nobuhide (1473) | Won 2-0 | +161613 |
| 9legacy | 581 | Kawasaki, Takeshi (1505) | Lost 0-2 | -201593 |
| top | average opponent: 1526record: 4-3 | new rating: 1593 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 177 | Tanaka, Takanori (1482) | Won 2-1 | +181523 |
| 2modern | 244 | Okuma, Naoki (1518) | Won 2-0 | +181541 |
| 3modern | 2 | Saito, Takaya (1682) | Lost 0-2 | -161525 |
| 4modern | 239 | Harasawa, Takashi (1522) | Won 2-0 | +181543 |
| 5modern | 97 | Kusakari, Yoshiharu (1537) | Won 2-0 | +181561 |
| 6modern | 157 | Takano, Kouhei (1508) | Won 2-0 | +171578 |
| 7modern | 82 | Kihara, Shouichi (1575) | Won 2-0 | +181596 |
| 8modern | 19 | Hagiwara, Takeshi (1534) | Won 2-0 | +171613 |
| 9modern | 16 | Kumagai, Riku (1611) | Lost 1-2 | -181595 |
| 10modern | 66 | Kawaguchi, Kyouhei (1704) | Lost 1-2 | -161579 |
| 11modern | 87 | Fujimoto, Takehiro (1654) | Won 2-1 | +191598 |
| 12modern | 42 | Wen, Yuning (1545) | Won 2-0 | +171615 |
| 13modern | 46 | Misumi, Kyouhei (1616) | Lost 0-2 | -181597 |
| 14modern | 51 | Isayama, Yusuke (1611) | Won 2-0 | +181615 |
| 15modern | 45 | Tamura, Hajime (1583) | Lost 0-2 | -181597 |
| 16modern | 38 | Tanaka, Kouichi (1794) | Lost 0-2 | -151582 |
| top | average opponent: 1592record: 10-6 | new rating: 1582 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2 | Ando, Koyo (1524) | Lost 1-2 | -171427 |
| 2standard | 245 | Yokomizo, Gouki (1470) | Lost 0-2 | -171410 |
| 3standard | 330 | Nedachi, Tatsuya (1463) | Won 2-1 | +191429 |
| 4standard | 393 | Kiyonaga, Sho (1493) | Lost 1-2 | -171412 |
| 5standard | 390 | Enomoto, Masae (1369) | Won 2-0 | +171429 |
| 6standard | 324 | Konno, Eiji (1481) | Won 2-0 | +191448 |
| 7standard | 225 | Oguri, Fumiaki (1496) | Won 2-1 | +191467 |
| 8standard | 172 | Fujimoto, Yuki (1523) | Won 2-0 | +191486 |
| 9standard | 120 | Shiroma, Takerou (1539) | Won 2-0 | +191505 |
| top | average opponent: 1484record: 6-3 | new rating: 1505 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 68 | Tey, Thye Sheng (1466) | Lost 1-2 | -181471 |
| 3extended | 162 | Baba, Yasunori (1558) | Lost 1-2 | -171454 |
| 4extended | 376 | Suzuki, Takaaki (1718) | Won 2-1 | +231477 |
| 5extended | 313 | Cardoso, Ricardo (1573) | Lost 0-2 | -161461 |
| 6extended | 343 | Hirose, Yuuki (1521) | Lost 1-2 | -171444 |
| top | average opponent: 1567record: 1-4 | new rating: 1444 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 25 | Kou, Changsu (1636) | Won 2-0 | +201520 |
| 3sealed | 2 | Kobayashi, Hiroki (1556) | Lost 0-2 | -171503 |
| 4sealed | 160 | Iwasaki, Yuusuke (1740) | Lost 0-2 | -141489 |
| 5sealed | 207 | Aizawa, Takahiro (1471) | Draw 1-1 | 01489 |
| top | average opponent: 1601record: 1-2-1 | new rating: 1489 | ||