Sekine, Naoto
Current rating: 1771 (#3070)
Record: 87-64-7
- 2008
- 2009
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1791 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 255 | Matsumoto, Yuki1423 (1659) | Lost 0-2 | -201771 |
| top | record: 0-1 | new rating: 1771 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1630 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 461 | Kodera, Yasunori (1611) | Won 2-0 | +171647 |
| 2sealed | 324 | Shimura, Yasuhiko (1367) | Won 2-0 | +131660 |
| 3sealed | 72 | Kawata, Kazuki (1492) | Won 2-0 | +151675 |
| 4sealed | 229 | Mishima, Wataru (1652) | Won 2-0 | +181693 |
| 5sealed | 96 | Morofuji, Takuma (2176) | Won 2-0 | +261719 |
| 6sealed | 56 | Yagawa, Masataka (1651) | Won 2-0 | +171736 |
| 7sealed | 4 | Connolly, Oliver (1594) | Won 2-1 | +151751 |
| 8sealed | 15 | Nakamura, Shuhei (1906) | Lost 1-2 | -151736 |
| 9sealed | 65 | Watanabe, Yusuke 3633 (1629) | Won 2-1 | +161752 |
| 10draft | 657 | Shimizu, Ryouta (1625) | Won 2-0 | +161768 |
| 11draft | 600 | Sakai, Tatsuya (1675) | Won 2-1 | +161784 |
| 12draft | 738 | Zhi, Yimin (2007) | Lost 1-2 | -141770 |
| 13draft | 719 | Ogawa, Ryota (1747) | Lost 1-2 | -181752 |
| 14draft | 704 | Matsuda, Yuuki1037 (1799) | Won 2-0 | +191771 |
| 15draft | 584 | Masukado, Kenta (1916) | Won 2-0 | +201791 |
| top | average opponent: 1723record: 12-3 | new rating: 1791 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 156 | Fukumoto, Takuma (1410) | Won 2-0 | +141636 |
| 2sealed | 452 | Izu, Yuuya (1483) | Won 2-1 | +151651 |
| 3sealed | 271 | Yamasaki, Yudai (1675) | Lost 1-2 | -171634 |
| 4sealed | 438 | Ichikawa, Tatsuya (1624) | Lost 0-2 | -181616 |
| 5sealed | 898 | Minami, Masashi (1649) | Won 2-0 | +181634 |
| 6sealed | 474 | Ootake, Masanori (1501) | Won 2-0 | +161650 |
| 7sealed | 317 | Nobukiyo, Yasuaki (1541) | Won 2-0 | +161666 |
| 8sealed | 243 | Endo, Takuya6807 (1522) | Lost 0-2 | -211645 |
| 9sealed | 436 | Ferrer Rozalen, Sergio (1780) | Lost 1-2 | -151630 |
| top | average opponent: 1576record: 5-4 | new rating: 1630 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1636 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 579 | Matsuda, Akio (1500) | Won 2-0 | +151651 |
| 2modern | 17 | Goto, Satoshi (1484) | Lost 1-2 | -211630 |
| 3modern | 777 | Takakura, Shinichirou (1489) | Won 2-1 | +161646 |
| 4modern | 675 | Tanaka, Mizuki (1470) | Won 2-1 | +151661 |
| 5modern | 433 | Kodama, Kentaro (1538) | Lost 1-2 | -211640 |
| 6modern | 638 | Sakaida, Yuuki (1573) | Won 2-0 | +171657 |
| 7modern | 331 | Yonezawa, Musashi (1784) | Lost 1-2 | -161641 |
| 8modern | 706 | Kung, Lam Yan (1559) | Lost 0-2 | -191622 |
| top | average opponent: 1550record: 4-4 | new rating: 1622 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1680 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 259 | Nishimura, Koichi (1419) | Won 2-0 | +131693 |
| 2legacy | 244 | Kurihara, Fumihiro (1520) | Lost 0-2 | -211672 |
| 3legacy | 943 | Yamaguchi, Takao (1402) | Lost 1-2 | -231649 |
| 4legacy | 1038 | Yarita, Yoshiaki (1447) | Lost 1-2 | -211628 |
| 5legacy | 1106 | Iwahashi, Kouki (1473) | Won 2-0 | +151643 |
| 6legacy | 951 | Sakagami, Taichi (1453) | Won 2-0 | +151658 |
| 7legacy | 634 | Shimazaki, Taichi (1446) | Lost 1-2 | -221636 |
| top | average opponent: 1451record: 3-4 | new rating: 1636 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1718 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 738 | Arita, Ryuichi (1715) | Lost 1-2 | -181700 |
| 2standard | 996 | Sasadate, Kai (1446) | Draw 1-1 | -41696 |
| 3standard | 1414 | Hayakawa, Yutaka (1444) | Won 2-0 | +131709 |
| 4standard | 1102 | Kihara, Syouta (1569) | Lost 1-2 | -201689 |
| 5standard | 1312 | Saito, Tomoe (1430) | Won 2-0 | +131702 |
| 6standard | 1042 | Shikano, Hiroto (1486) | Lost 0-2 | -221680 |
| top | average opponent: 1515record: 2-3-1 | new rating: 1680 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1783 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 837 | Yoshizawa, Masaru (1570) | Lost 0-2 | -221761 |
| 2sealed | 644 | Muronoi, Shin (1482) | Lost 0-2 | -231738 |
| 3sealed | 1267 | Tanaka, Tomonori (1297) | Won 2-1 | +101748 |
| 4sealed | 888 | Kobayashi, Hiroaki (1354) | Draw 1-1 | -61742 |
| 5sealed | 996 | Omura, Hajime (1434) | Lost 1-2 | -241718 |
| top | average opponent: 1428record: 1-3-1 | new rating: 1718 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1680 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1100 | Ishiduka, Katuya (1500) | Won 2-0 | +151695 |
| 2sealed | 991 | Mizutani, Tomohiko (1518) | Won 2-1 | +151710 |
| 3sealed | 1040 | Aida, Kazuki (1478) | Won 2-0 | +141724 |
| 4sealed | 844 | Yamaoka, Keita (1524) | Won 2-0 | +141738 |
| 5sealed | 833 | Terauchi, Tatsuya (1744) | Lost 0-2 | -181720 |
| 6sealed | 833 | Fujihira, Keizou (1636) | Won 2-1 | +171737 |
| 7sealed | 849 | Takada, Ryuto (1547) | Lost 1-2 | -221715 |
| 8sealed | 910 | Mizutani, Yosuke (1754) | Won 2-1 | +191734 |
| 9sealed | 837 | Masubuchi, Daisuke (1576) | Won 2-0 | +151749 |
| 10draft | 152 | Son, Kii (1608) | Won 2-0 | +151764 |
| 11draft | 128 | Heng, Chye Hwee (1833) | Lost 0-2 | -161748 |
| 12draft | 18 | Abe, Motoki (1774) | Won 2-1 | +181766 |
| 13draft | 5 | Yamamoto, Kentaro (1891) | Won 2-1 | +201786 |
| 14draft | 129 | Oh, Joo Hyun (1647) | Won 2-1 | +161802 |
| 15draft | 49 | Kobayashi, Tatsuumi (1739) | Lost 1-2 | -191783 |
| top | average opponent: 1651record: 11-4 | new rating: 1783 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1629 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Kamikawa, Takuya (1469) | Won 2-1 | +151644 |
| 2sealed | 19 | Tanaka, Kouichi (1750) | Won 2-0 | +201664 |
| 3sealed | 121 | Tang, Yu Hsiang (1510) | Lost 0-2 | -201644 |
| 4sealed | 239 | Katsu, Masahiro (1396) | Won 2-1 | +131657 |
| 5sealed | 167 | Ohmoto, Masaya (1402) | Won 2-1 | +141671 |
| 6sealed | 58 | Kita, Takuya (1444) | Draw 1-1 | -41667 |
| 7sealed | 86 | Arita, Kento (1761) | Won 2-1 | +191686 |
| 8sealed | 56 | Goto, Shougo (1584) | Won 2-0 | +161702 |
| 9sealed | 33 | Kanazawa, Ayanobu (1681) | Won 2-0 | +181720 |
| 10draft | 44 | Sugiyama, Yuya (1923) | Lost 0-2 | -141706 |
| 11draft | 76 | Hirose, Yuuki (1716) | Lost 0-2 | -181688 |
| 12draft | 38 | Hattori, Kazuki (1692) | Won 2-0 | +181706 |
| 13draft | 90 | Matsuo, Shuto (1533) | Won 2-1 | +151721 |
| 14draft | 70 | Nishiura, Ryosuke (1585) | Lost 0-2 | -211700 |
| 15draft | 76 | Hamachiyo, Takahiro (1579) | Lost 1-2 | -201680 |
| top | average opponent: 1602record: 9-5-1 | new rating: 1680 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1648 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Samaru, Takafumi (1500) | Lost 0-2 | -211627 |
| 2sealed | 326 | Itou, Ryouta (1371) | Won 2-0 | +141641 |
| 3sealed | 343 | Nishi, Hyuma (1501) | Won 2-0 | +151656 |
| 4sealed | 191 | Fujiwara, Katsuma (1516) | Lost 0-2 | -201636 |
| 5sealed | 276 | Yanagawa, Yuuki (1415) | Won 2-0 | +141650 |
| 6sealed | 125 | Lee, Jaejeong (1520) | Lost 0-2 | -211629 |
| top | average opponent: 1471record: 3-3 | new rating: 1629 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1588 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 282 | Yamauchi, Shotaro (1464) | Lost 0-2 | -201568 |
| 2sealed | 401 | Abe, Hirofumi (1716) | Won 2-1 | +211589 |
| 3sealed | 226 | M., Ken (1500) | Won 2-0 | +161605 |
| 4sealed | 314 | Oohashi, Toshiyuki (1493) | Won 2-1 | +161621 |
| 5sealed | 203 | Arakawa, Tatsuya (1783) | Won 2-1 | +211642 |
| 6sealed | 52 | Hidaka, Ayumi (1677) | Won 2-0 | +181660 |
| 7sealed | 74 | Taya, Kentaro (1603) | Won 2-1 | +171677 |
| 8sealed | 169 | Oiso, Masashi (2030) | Lost 1-2 | -111666 |
| 9sealed | 258 | Torigoe, Seitaro (1688) | Lost 0-2 | -181648 |
| top | average opponent: 1662record: 6-3 | new rating: 1648 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 358 | Koyama, Kaoru (1500) | Won 2-0 | +171572 |
| 2standard | 169 | Kato, Akinori (1443) | Won 2-0 | +151587 |
| 3standard | 60 | Hagiwara, Genta (1699) | Lost 0-2 | -161571 |
| 4standard | 528 | Shimono, Atsushi (1482) | Won 2-1 | +171588 |
| 5standard | 285 | Emi, Shin'ichirou (1539) | Won 2-1 | +171605 |
| 6standard | 168 | Kim, Chang-Hoi (1452) | Lost 1-2 | -211584 |
| 7standard | 199 | Owada, Kazuya (1539) | Won 2-0 | +171601 |
| 8standard | 194 | Nakajima, Chikara (1879) | Lost 0-2 | -131588 |
| top | average opponent: 1567record: 5-3 | new rating: 1588 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 12 | Semura, Junichi (1416) | Lost 0-2 | -211576 |
| 3modern | 426 | Okimura, Yosuke (1533) | Lost 0-2 | -191557 |
| 4modern | 631 | Mitsuboshi, Daisuke (1480) | Won 2-0 | +171574 |
| 5modern | 369 | Matsubara, Tohru (1498) | Lost 0-2 | -191555 |
| top | average opponent: 1482record: 1-3 | new rating: 1555 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 160 | Yamaguchi, Hiroshi (1629) | Won 2-0 | +201541 |
| 2sealed | 168 | Hoshino, Shinya (1453) | Lost 1-2 | -201521 |
| 3sealed | 231 | Kawahara, Ryouta (1508) | Won 2-1 | +181539 |
| 4sealed | 268 | Miyawaki, Wataru (1543) | Won 2-0 | +181557 |
| 5sealed | 151 | Yeh, Chih-Cheng (1534) | Won 2-1 | +181575 |
| 6sealed | 91 | Nakamura, Shuhei (2106) | Won 2-1 | +261601 |
| 7sealed | 68 | Miyajima, Kazutoshi (1538) | Won 2-1 | +171618 |
| 8sealed | 17 | Oota, Yuuki (1594) | Lost 1-2 | -181600 |
| 9sealed | 83 | Takeda, Hiroki (1551) | Won 2-1 | +171617 |
| 10draft | 46 | Yamada, Yousuke (1599) | Lost 1-2 | -181599 |
| 11draft | 54 | Mohd Khairul Anuar, Abdul Aziz (1579) | Lost 0-2 | -191580 |
| 13draft | 58 | Sasaki, Masaya (Akita) (1590) | Won 2-1 | +181598 |
| 14draft | 13 | Ishikawa, Shou (1582) | Won 2-0 | +181616 |
| 15draft | 6 | Tabata, Yuusuke (1579) | Lost 0-2 | -191597 |
| top | average opponent: 1599record: 9-5 | new rating: 1597 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 19 | Tsumura, Kenji (1783) | Won 2-1 | +221559 |
| 5extended | 26 | Sunada, Shougo (1835) | Lost 0-2 | -131546 |
| 6extended | 67 | Shimizu, Naoki (1748) | Won 2-0 | +221568 |
| 7extended | 49 | Juumonji, Ryou (1691) | Lost 1-2 | -161552 |
| 8extended | 47 | Kinoshita, Tomohiro (1586) | Won 2-0 | +191571 |
| 9extended | 50 | Ito, Tomoki (1584) | Won 2-0 | +181589 |
| 10extended | 30 | Chiba, Akio (1828) | Lost 1-2 | -141575 |
| 11extended | 5 | Hirayama, Hideyuki (1591) | Lost 1-2 | -181557 |
| 12extended | 3 | Hayashi, Shouya (1578) | Lost 0-2 | -171540 |
| 13extended | 17 | Mashima, Mitsuharu (1614) | Draw 1-1 | +11541 |
| 14extended | 11 | Yamada, Hiroki (1411) | Lost 0-2 | -201521 |
| top | average opponent: 1659record: 4-6-1 | new rating: 1521 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 155 | Sasaki, Masaya (Aichi) (1500) | Lost 0-2 | -181502 |
| 2standard | 294 | Yamagata, Yutaro (1482) | Won 2-1 | +181520 |
| 3standard | 131 | Fukuda, Yousuke (1500) | Won 2-1 | +171537 |
| 4standard | 135 | Tetsuka, Motoki (1522) | Won 2-0 | +181555 |
| 5standard | 119 | Fukushima, Masataka (1539) | Lost 0-2 | -181537 |
| 6standard | 185 | Yamamoto, Kazuhide (1503) | Won 2-0 | +171554 |
| 7standard | 183 | Kodama, Hironori (1555) | Won 2-0 | +181572 |
| 8standard | 68 | Sakurai, Taiki (1522) | Lost 0-2 | -191553 |
| 9standard | 113 | Shiota, Fumihiko (1638) | Lost 0-2 | -161537 |
| top | average opponent: 1529record: 5-4 | new rating: 1537 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 394 | Yamazaki, Hiroyuki (1493) | Won 2-0 | +181503 |
| 2extended | 110 | Munekata, Tomofumi (1518) | Won 2-1 | +191522 |
| 3extended | 64 | Kozakai, Yukio (1460) | Won 2-0 | +171539 |
| 4extended | 86 | Michibata, Tatsuya (1547) | Draw 1-1 | 01539 |
| 5extended | 61 | Kurachi, Yuuya (1506) | Draw 1-1 | -11538 |
| 6extended | 130 | Fukasawa, Taichi (1553) | Lost 0-2 | -181520 |
| top | average opponent: 1513record: 3-1-2 | new rating: 1520 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Kamada, Yuuki (1500) | Draw 1-1 | +11484 |
| 2sealed | 188 | Abe, Keisuke (1489) | Won 2-0 | +181502 |
| 3sealed | 106 | Yamauchi, Takashi (1608) | Won 2-0 | +201522 |
| 4sealed | 89 | Ikeda, Kaoru (1544) | Lost 0-2 | -181504 |
| 5sealed | 154 | Ishida, Ryuichiro (1467) | Lost 1-2 | -191485 |
| top | average opponent: 1522record: 2-2-1 | new rating: 1485 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 223 | Shiota, Yuuma (1546) | Won 2-1 | +191519 |
| 2standard | 38 | Takagi, Takayuki (1519) | Won 2-1 | +181537 |
| 3standard | 25 | Naitou, Keisuke (1587) | Lost 1-2 | -171520 |
| 4standard | 210 | Matsuo, Yoshiyuki (1485) | Lost 1-2 | -191501 |
| 5standard | 223 | French, Michael (1505) | Lost 0-2 | -181483 |
| top | average opponent: 1529record: 2-3 | new rating: 1483 | ||