Oono, Seita
Current rating: 1524
Record: 48-48-3 (GP) / 7-8-1 (professional)
Grand Prix Kobe 2015Grand Prix Nagoya 2016Grand Prix Tokyo 2016Grand Prix Shizuoka 2017Pro Tour AmonkhetGrand Prix Kobe 2017Grand Prix Kyoto 2017Grand Prix Chiba 2018Grand Prix Shizuoka 2018 (standard)Grand Prix Kyoto 2019Grand Prix Yokohama 2019Grand Prix Taipei 2019Regional Championships Aichi 2023
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 110 | Adachi, Naohiko (1530) | Lost 0-2 | -191541 |
| 2pioneer | 109 | Tonouchi, Keita (1628) | Won 2-1 | +201561 |
| 3pioneer | 89 | Sakata, Naoya (1539) | Lost 1-2 | -191542 |
| 4pioneer | 94 | Yokomizo, Gouki (1405) | Won 2-1 | +161558 |
| 5pioneer | 59 | yoshimura, takuya (1505) | Lost 0-2 | -191539 |
| 6pioneer | 62 | Oka, Yosuke (1733) | Lost 0-2 | -151524 |
| top | average opponent: 1556record: 2-4 | new rating: 1524 | ||
| Grand Prix Taipei 2019 (WAR standard) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 73 | Harada, Dampei (1819) | Won 2-1 | +221608 |
| 4standard | 106 | Tan, Steven (1937) | Won 2-0 | +241632 |
| 5standard | 5 | Hirami, Tomonori (1731) | Lost 0-2 | -161616 |
| 6standard | 123 | Wang, Yen-Xiang (1557) | Lost 1-2 | -191597 |
| 7standard | 134 | Hsu, David (1587) | Lost 1-2 | -191578 |
| 8standard | 236 | Chen, Hsing-Chuan (1528) | Lost 1-2 | -181560 |
| top | average opponent: 1693record: 2-4 | new rating: 1560 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 431 | Nagao, Kengo (1881) | Lost 0-2 | -141626 |
| 4modern | 591 | Uzuki, Yushi (1521) | Lost 1-2 | -201606 |
| 5modern | 886 | Matsushita, Yuusuke (1483) | Lost 0-2 | -201586 |
| top | average opponent: 1628record: 0-3 | new rating: 1586 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1637 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 341 | Nagai, Mamoru (1641) | Won 2-0 | +181655 |
| 4standard | 32 | Boku, Takashi (1754) | Won 2-0 | +201675 |
| 5standard | 84 | Deguchi, Keizou (1635) | Won 2-1 | +171692 |
| 6standard | 31 | Shair, Chung Ngai (1752) | Lost 1-2 | -171675 |
| 7standard | 175 | Maeba, Hideaki (1848) | Lost 0-2 | -151660 |
| 8standard | 256 | Noji, Koichiro (1518) | Lost 0-2 | -201640 |
| top | average opponent: 1691record: 3-3 | new rating: 1640 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 335 | Iwayama, Masatomo (1615) | Won 2-0 | +171645 |
| 3standard | 479 | Sakuma, Toshimitsu (1663) | Lost 1-2 | -171628 |
| 4standard | 480 | Okada, Naoya (1681) | Won 2-1 | +191647 |
| 5standard | 391 | Satou, Yoshikazu (1386) | Won 2-0 | +131660 |
| 6standard | 310 | Zhi, Yimin (1835) | Lost 1-2 | -151645 |
| 7standard | 539 | Shimura, Takeshi (1344) | Won 2-1 | +131658 |
| 8standard | 327 | Kato, Hiroki3246 (1505) | Lost 0-2 | -211637 |
| top | average opponent: 1576record: 4-3 | new rating: 1637 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 179 | Kawabata, Shou8056 (1529) | Won 2-0 | +181558 |
| 3sealed | 329 | Miyajima, Kenichi (1533) | Won 2-0 | +171575 |
| 4sealed | 239 | Wada, Yusuke (1534) | Won 2-0 | +171592 |
| 5sealed | 89 | Suzuki, Junpei (1670) | Won 2-1 | +201612 |
| 6sealed | 25 | Shiozu, Ryouma (1795) | Lost 0-2 | -151597 |
| 7sealed | 153 | Jinno, Kaname (1515) | Lost 1-2 | -191578 |
| 8sealed | 341 | Osaka, Yusuke (1667) | Won 2-0 | +191597 |
| 9sealed | 129 | Tomomura, Hitoshi (1910) | Lost 1-2 | -121585 |
| 10draft | 712 | Kase, Koichi (1548) | Won 2-0 | +171602 |
| 11draft | 672 | Ishii, Taisuke (1872) | Lost 0-2 | -131589 |
| 12draft | 730 | Mihara, Makihito (1856) | Lost 0-2 | -131576 |
| 13draft | 634 | Taki, Masaya (1471) | Won 2-1 | +161592 |
| 14draft | 619 | Ueki, Junichi (1498) | Won 2-0 | +161608 |
| 15draft | 618 | Araki, Tatsunori (1692) | Won 2-0 | +201628 |
| top | average opponent: 1649record: 9-5 | new rating: 1628 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 484 | Saida, Toshihiro (1753) | Lost 0-2 | -141557 |
| 4sealed | 362 | Yoshimura, Naoto (1600) | Won 2-0 | +181575 |
| 5sealed | 357 | Moriya, Jun (1840) | Lost 1-2 | -131562 |
| 6sealed | 536 | Yasuda, Takaaki (1523) | Won 2-0 | +171579 |
| 7sealed | 367 | Shibayama, Hayato (1275) | Lost 0-2 | -231556 |
| 8sealed | 486 | Ishikami, Naotaka (1651) | Lost 0-2 | -161540 |
| top | average opponent: 1607record: 2-4 | new rating: 1540 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1670 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 70 | Nakano, Taiki (1493) | Lost 0-2 | -211649 |
| 3modern | 973 | Okudaira, Takenatsu (1456) | Won 2-1 | +141663 |
| 4modern | 600 | Youhei, Onoue (1518) | Lost 1-2 | -201643 |
| 5modern | 736 | Takahashi, Kei (1576) | Lost 1-2 | -201623 |
| 6modern | 1090 | Toyoda, Ryosuke (1371) | Lost 0-2 | -221601 |
| 7modern | 983 | Takahashi, Masato 0722 (1440) | Lost 1-2 | -211580 |
| 8modern | 914 | Fujii, Ami (1281) | Lost 1-2 | -231557 |
| 9modern | 836 | Yuta, Inaoka (1372) | Won 2-1 | +141571 |
| top | average opponent: 1438record: 2-6 | new rating: 1571 | ||
| Pro Tour Amonkhet (AKH standard) | starting rating: 1644 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 161 | Takahashi, Zen (1927) | Won 2-1 | +231667 |
| 2draft | 19 | Campanino, Fabrizio (1941) | Lost 0-2 | -131654 |
| 3draft | 152 | Campos, Luis (1467) | Won 2-0 | +151669 |
| 4standard | 25 | Tan, Richard (1951) | Lost 1-2 | -131656 |
| 5standard | 116 | Simard, Jason (1761) | Won 2-1 | +201676 |
| 6standard | 64 | Ashton, Thomas (1949) | Lost 0-2 | -141662 |
| 7standard | 97 | Tomomura, Hitoshi (1966) | Won 2-1 | +241686 |
| 8standard | 62 | Rubin, Benjamin (2141) | Won 2-1 | +261712 |
| 9draft | 42 | Deane, Peter (1607) | Won 2-0 | +161728 |
| 10draft | 64 | Ichikawa, Yuuki (2142) | Won 2-0 | +251753 |
| 11draft | 63 | Wheeler, Tyrell (1856) | Lost 1-2 | -161737 |
| 12standard | 46 | Lomba Pinto Queiroz, Victor (1589) | Lost 1-2 | -211716 |
| 13standard | 65 | DeCandio, Brennan (1852) | Lost 1-2 | -151701 |
| 14standard | 66 | Friedrich, Fabian (1876) | Draw 1-1 | +31704 |
| 15standard | 69 | Sikkink Johnson, Matt (1767) | Lost 1-2 | -171687 |
| 16standard | 82 | Milewicz, Mateusz (1746) | Lost 0-2 | -171670 |
| top | average opponent: 1846record: 7-8-1 | new rating: 1670 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 166 | Shinya, Takeshi (1505) | Won 2-1 | +171566 |
| 3standard | 172 | Nam, Sung Wook (1769) | Lost 1-2 | -141552 |
| 4standard | 685 | Gou, Makoto (1493) | Won 2-0 | +171569 |
| 5standard | 237 | Fukuda, Ryoma (1505) | Draw 1-1 | -21567 |
| 6standard | 394 | Iimura, Yuta (1518) | Won 2-1 | +171584 |
| 7standard | 243 | Ushie, Yuuta (1910) | Won 2-1 | +241608 |
| 8standard | 148 | Hayakawa, Naoki (1633) | Lost 1-2 | -171591 |
| 9standard | 283 | Kuroda, Shun (1527) | Won 2-0 | +161607 |
| 10standard | 183 | Ishiguro, Youhei5952 (1552) | Won 2-0 | +171624 |
| 11standard | 112 | Murayama, Keiichiro (1650) | Won 2-0 | +191643 |
| 12standard | 74 | Zheng, Peiyuan (1684) | Lost 0-2 | -171626 |
| 13standard | 139 | Takenaka, Yuuhi (1755) | Won 2-1 | +201646 |
| 14standard | 92 | Abe, Yuuta (1593) | Lost 1-2 | -191627 |
| 15standard | 139 | Yoshizawa, Kohei (1577) | Won 2-1 | +171644 |
| top | average opponent: 1619record: 9-4-1 | new rating: 1644 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 168 | Hirose, Makoto (1533) | Lost 0-2 | -201589 |
| 3standard | 1255 | Suzuki, Takuma (1542) | Won 2-1 | +181607 |
| 4standard | 753 | Kudou, Koudai (1572) | Lost 0-2 | -191588 |
| 5standard | 875 | Torichigai, Noriaki (1469) | Lost 0-2 | -201568 |
| 6standard | 1078 | Matsushima, Kyousuke (1505) | Lost 0-2 | -191549 |
| top | average opponent: 1524record: 1-4 | new rating: 1549 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 500 | Hagiwara, Satoshi (1478) | Lost 0-2 | -191501 |
| 2sealed | 882 | Ikoma, Tomoyuki (1517) | Won 2-1 | +191520 |
| 3sealed | 730 | Isigaki, Nobuyuki (1469) | Won 2-0 | +171537 |
| 4sealed | 583 | Kozutsumi, Shin (1464) | Won 2-0 | +171554 |
| 5sealed | 540 | Shoji, Kenta (1537) | Won 2-0 | +171571 |
| 6sealed | 225 | Katou, Shinpei (1546) | Won 2-1 | +181589 |
| 7sealed | 53 | Kojima, Yoshifumi (1582) | Won 2-0 | +181607 |
| 8sealed | 73 | Fujii, Akira (1598) | Lost 1-2 | -191588 |
| 9sealed | 121 | Takao, Shota (1962) | Lost 0-2 | -111577 |
| 10draft | 152 | Usiro, Naoki (1584) | Won 2-0 | +181595 |
| 11draft | 82 | Fukunaga, Nao (1525) | Lost 0-2 | -191576 |
| 12draft | 162 | Sasaki, Osamu (1543) | Won 2-0 | +171593 |
| 13draft | 60 | Masuda, Jyunya (1594) | Won 2-1 | +181611 |
| 14draft | 50 | Ohata, Hiroyuki (1589) | Won 2-0 | +181629 |
| 15draft | 40 | Teshima, Hisanori (1521) | Lost 0-2 | -201609 |
| top | average opponent: 1567record: 10-5 | new rating: 1609 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 614 | Hozuki, Atsushi (1440) | Won 2-0 | +171517 |
| 2standard | 80 | Izaki, Yuji (1518) | Won 2-0 | +181535 |
| 3standard | 528 | Matsubara, Shintaro (1537) | Draw 1-1 | 01535 |
| 4standard | 313 | Suyama, Takehiko (1499) | Lost 1-2 | -191516 |
| 5standard | 561 | Ohasi, Masaki (1502) | Won 2-0 | +181534 |
| 6standard | 336 | Cho, Jeong Woo (1746) | Lost 0-2 | -141520 |
| 7standard | 531 | Yosiura, Hirotosi (1516) | Won 2-0 | +181538 |
| 8standard | 362 | Tomita, Kei (1598) | Draw 1-1 | +11539 |
| 9standard | 392 | Yuuhi, Fuchimoto (1503) | Lost 0-2 | -191520 |
| top | average opponent: 1540record: 4-3-2 | new rating: 1520 | ||