Miyazaki, Kodai
Current rating: 1658
Record: 68-53-2
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1643 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 286 | Tamura, Youhei (1568) | Lost 1-2 | -191624 |
| 2standard | 796 | Suzuki, Kouichirou (1380) | Won 2-1 | +131637 |
| 3standard | 1110 | Tanaka, Kyo (1503) | Won 2-0 | +161653 |
| 4standard | 645 | Masuyama, Takahiro (1522) | Won 2-1 | +161669 |
| 5standard | 317 | Sakai, Ryou (1565) | Lost 0-2 | -201649 |
| 6standard | 691 | Juumonji, Ryou (1804) | Lost 1-2 | -151634 |
| 7standard | 922 | Nakano, Akinori (1505) | Won 2-1 | +151649 |
| 8standard | 753 | Inoue, Yuusuke (1635) | Won 2-0 | +181667 |
| 9standard | 537 | Bae, Sanghoon (1697) | Won 2-0 | +191686 |
| 10standard | 312 | Koshimura, Takeshi (1678) | Lost 1-2 | -191667 |
| 11standard | 343 | Narita, Kazushige (1530) | Draw 1-1 | -21665 |
| 12standard | 338 | Sasao, Yusuke (1655) | Lost 0-2 | -181647 |
| 13standard | 332 | Nakamura, Taro (1392) | Won 2-1 | +131660 |
| 14standard | 278 | Mishima, Wataru (1592) | Won 2-1 | +171677 |
| 15standard | 228 | Hayakawa, Naoki (1649) | Lost 1-2 | -191658 |
| top | average opponent: 1578record: 8-6-1 | new rating: 1658 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 911 | Nagaoka, Taishi (1500) | Won 2-0 | +151650 |
| 2standard | 343 | Sugiyama, Nobukatsu (1507) | Draw 1-1 | -21648 |
| 3standard | 776 | Katagiri, Akihito (1622) | Won 2-1 | +171665 |
| 4standard | 372 | Soh, Yun Huei (1369) | Lost 1-2 | -231642 |
| 5standard | 762 | Sakano, Hiroki (1514) | Won 2-0 | +161658 |
| 6standard | 462 | Fukuda, Gou (1491) | Won 2-1 | +151673 |
| 7standard | 302 | Shinta, Tsuneto (1561) | Won 2-1 | +161689 |
| 8standard | 147 | Hara, Yusuke (1743) | Lost 1-2 | -171672 |
| 9standard | 344 | Takeda, Noriaki (1583) | Won 2-0 | +161688 |
| 10standard | 193 | Minoshima, Daijiro (1487) | Lost 1-2 | -221666 |
| 11standard | 337 | Ono, Tomonori (1647) | Won 2-1 | +181684 |
| 12standard | 237 | Nagai, Mamoru (1719) | Lost 1-2 | -171667 |
| 13standard | 299 | Kanazawa, Ryo (1610) | Lost 0-2 | -191648 |
| 14standard | 293 | Kuramochi, Masanori (1510) | Lost 1-2 | -211627 |
| 15standard | 275 | Lim, David (1517) | Won 2-0 | +161643 |
| top | average opponent: 1559record: 8-6-1 | new rating: 1643 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 455 | Ueda, Toshiya (1500) | Won 2-0 | +161649 |
| 2standard | 204 | Sakai, Toshinori (1595) | Won 2-0 | +171666 |
| 3standard | 131 | Nakamura, Atsushi (1729) | Won 2-1 | +191685 |
| 4standard | 205 | Soh, Joe (1815) | Lost 0-2 | -161669 |
| 5standard | 236 | Tanaka, Sou (1428) | Won 2-0 | +141683 |
| 6standard | 130 | Mizumoto, Hirotaka (1449) | Lost 1-2 | -221661 |
| 7standard | 262 | Oshima, Yuki (1544) | Lost 1-2 | -201641 |
| 8standard | 414 | Yamashita, Hiromichi (1457) | Won 2-0 | +141655 |
| 9standard | 284 | Kusunoki, Yuki (1516) | Lost 1-2 | -201635 |
| top | average opponent: 1559record: 5-4 | new rating: 1635 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1606 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 52 | Ueda, Kazuki (1460) | Lost 1-2 | -211585 |
| 3sealed | 368 | Matsumoto, Ken (1394) | Won 2-1 | +151600 |
| 4sealed | 170 | Kishida, Hirokazu (1615) | Won 2-1 | +181618 |
| 5sealed | 94 | Juza, Martin (1984) | Lost 0-2 | -111607 |
| 6sealed | 249 | Kumon, Shun (1602) | Lost 0-2 | -181589 |
| 7sealed | 241 | Iso, Toshiharu (1473) | Won 2-1 | +161605 |
| 8sealed | 166 | Tanimoto, Tatsuro (1309) | Won 2-0 | +121617 |
| 9sealed | 120 | Ohata, Hiroyuki (1503) | Won 2-0 | +161633 |
| top | average opponent: 1543record: 5-3 | new rating: 1633 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1682 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 127 | Nakamura, Yuta (1487) | Lost 1-2 | -211661 |
| 2modern | 378 | Ichikawa, Tatsuya (1446) | Lost 0-2 | -221639 |
| 3modern | 496 | Komizo, Kouichi (1464) | Won 2-0 | +151654 |
| 4modern | 444 | Mori, Naoki (1481) | Lost 1-2 | -211633 |
| 5modern | 492 | Konishi, Hideaki (1418) | Lost 0-2 | -221611 |
| 6modern | 469 | Watanabe, Yasunari (1516) | Won 2-0 | +161627 |
| 7modern | 378 | Takamisawa, Yuki (1462) | Lost 1-2 | -211606 |
| top | average opponent: 1468record: 2-5 | new rating: 1606 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 73 | Onizuka, Makoto (1526) | Lost 1-2 | -211679 |
| 3standard | 309 | Mashiro, Daisuke (1554) | Lost 1-2 | -211658 |
| 4standard | 447 | Oobayashi, Naoki (1484) | Won 2-0 | +151673 |
| 5standard | 369 | Seta, Ryouhei (1498) | Won 2-0 | +151688 |
| 6standard | 203 | Ozawa, Takeshi (1899) | Lost 0-2 | -141674 |
| 7standard | 316 | Narita, Chisato (1503) | Won 2-1 | +151689 |
| 8standard | 210 | Furusato, Hiroshi (1577) | Won 2-0 | +161705 |
| 9standard | 166 | Yonezaki, Daisuke (1453) | Lost 0-2 | -231682 |
| top | average opponent: 1562record: 4-4 | new rating: 1682 | ||
| Grand Prix Bangkok 2013 (DGM limited) | starting rating: 1718 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 178 | Fang, Wang (1600) | Lost 0-2 | -211697 |
| 3sealed | 266 | Methawattanakul, Sakul (1505) | Won 2-0 | +151712 |
| 4sealed | 131 | Supasiri, Chanatip (1518) | Won 2-0 | +151727 |
| 5sealed | 134 | Itakura, Yusuke (1464) | Won 2-0 | +131740 |
| 6sealed | 72 | Cantillana, Andrew (1960) | Won 2-1 | +221762 |
| 7sealed | 29 | Shunglor, Pakpoom (1579) | Lost 0-2 | -221740 |
| 8sealed | 82 | Cho, Jeong Woo (1693) | Lost 1-2 | -181722 |
| 9sealed | 104 | Issarangkool Na Ayudth, (1512) | Lost 0-2 | -221700 |
| top | average opponent: 1604record: 4-4 | new rating: 1700 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1577 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 253 | Oohira, Saya (1518) | Won 2-1 | +171594 |
| 3sealed | 184 | Kabutomori, You (1501) | Lost 1-2 | -201574 |
| 4sealed | 329 | Nakai, Yutaka (1518) | Won 2-1 | +171591 |
| 5sealed | 141 | Sugahara, Yuuji (1536) | Won 2-0 | +171608 |
| 6sealed | 66 | Yagawa, Masataka (1558) | Won 2-1 | +171625 |
| 7sealed | 86 | Notake, Shozaburo (1573) | Won 2-0 | +171642 |
| 8sealed | 162 | Fujii, Takashi (1631) | Won 2-0 | +181660 |
| 9sealed | 194 | Asahina, Taku (1610) | Won 2-0 | +171677 |
| 10sealed | 5 | Takesue, Chikara (1793) | Lost 1-2 | -161661 |
| 11sealed | 26 | Yamaguchi, Koutarou (1627) | Won 2-1 | +181679 |
| 12draft | 104 | Sakamoto, Ryousuke (1662) | Won 2-1 | +171696 |
| 13draft | 36 | Kawahama, Yoshikazu (1626) | Won 2-1 | +171713 |
| 14draft | 73 | Hibino, Yasutaka (1698) | Lost 0-2 | -181695 |
| 15draft | 98 | Nishihara, Jun (1632) | Won 2-0 | +171712 |
| 16draft | 20 | Murae, Ryuji (1791) | Won 2-0 | +191731 |
| 17draft | 8 | Morofuji, Takuma (1990) | Lost 0-2 | -131718 |
| top | average opponent: 1642record: 12-4 | new rating: 1718 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 145 | Ishii, Tomoaki (1517) | Lost 1-2 | -191557 |
| 3standard | 418 | Kuroda, Akihiro (1500) | Won 2-0 | +171574 |
| 4standard | 449 | Keita T., (1595) | Won 2-1 | +181592 |
| 5standard | 197 | Tanabe, Yuusuke (1505) | Won 2-0 | +171609 |
| 6standard | 141 | Hase, Shun (1530) | Won 2-1 | +161625 |
| 7standard | 65 | Morita, Kouki (1617) | Lost 1-2 | -181607 |
| 8standard | 213 | Hagiwara, Noriyuki (1719) | Lost 0-2 | -161591 |
| 9standard | 246 | Higaki, Takao (1804) | Lost 0-2 | -141577 |
| top | average opponent: 1598record: 4-4 | new rating: 1577 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 400 | Mii, Masayuki (1555) | Lost 0-2 | -171504 |
| 3modern | 307 | Kiuchi, Satoru (1522) | Won 2-0 | +181522 |
| 4modern | 380 | Takeda, Daisuke (1521) | Lost 0-2 | -181504 |
| 5modern | 435 | Nishiyama, Takahiro (1498) | Won 2-0 | +181522 |
| 6modern | 294 | Baba, Yasunori (1679) | Won 2-0 | +211543 |
| 7modern | 140 | Ebitani, Keisuke (1553) | Won 2-1 | +181561 |
| 8modern | 153 | Sakamoto, Akihito (1509) | Won 2-1 | +171578 |
| 9modern | 96 | Satou, Noboru (1725) | Won 2-1 | +211599 |
| 10modern | 38 | Ishii, Taisuke (1779) | Lost 0-2 | -151584 |
| 11modern | 61 | Kim, Cynic (1794) | Won 2-1 | +221606 |
| 12modern | 55 | Omori, Kazuto (1582) | Lost 0-2 | -191587 |
| 13modern | 57 | Katsubayashi, Nobuhisa (1564) | Lost 0-2 | -181569 |
| 14modern | 75 | Matsumoto, Nozomu (1559) | Won 2-1 | +181587 |
| 15modern | 54 | Yukuhiro, Ken (1996) | Lost 1-2 | -111576 |
| top | average opponent: 1631record: 8-6 | new rating: 1576 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 205 | Oosaki, Masakazu (1306) | Won 2-0 | +151540 |
| 3sealed | 127 | Ito, Daisuke (1466) | Won 2-0 | +161556 |
| 4sealed | 72 | Baba, Yasunori (1703) | Lost 0-2 | -151541 |
| 5sealed | 129 | Funahashi, Shun (1538) | Won 2-1 | +181559 |
| 6sealed | 80 | Ueno, Mitsuru (1568) | Lost 1-2 | -181541 |
| 7sealed | 142 | Lee, Kil-Ho (1447) | Lost 1-2 | -201521 |
| top | average opponent: 1505record: 3-3 | new rating: 1521 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 189 | Kawada, Shuuji (1500) | Won 2-1 | +181518 |
| 2standard | 67 | Aoki, Shougo (1446) | Lost 1-2 | -191499 |
| 3standard | 111 | Hayashi, Hiroki (1717) | Won 2-1 | +221521 |
| 4standard | 167 | Satou, Naoki (1613) | Won 2-1 | +191540 |
| 5standard | 158 | Miyazaki, Yasuhiro (1527) | Lost 1-2 | -181522 |
| 6standard | 190 | Urasawa, Taiji (1434) | Won 2-0 | +161538 |
| 7standard | 142 | Hamano, Kouhei (1545) | Lost 0-2 | -171521 |
| 8standard | 131 | Yamaguchi, Tetsuya (1556) | Won 2-1 | +181539 |
| 9standard | 116 | Yoshimori, Sho (1775) | Lost 1-2 | -141525 |
| top | average opponent: 1568record: 5-4 | new rating: 1525 | ||