Shikata, Nobuaki
Current rating: 1610
Record: 55-48-5
Grand Prix Kyoto 2000Grand Prix Hiroshima 2001Grand Prix Kobe 2001Grand Prix Shizuoka 2001Grand Prix Fukuoka 2002Grand Prix Sapporo 2002Grand Prix Hiroshima 2003Grand Prix Kyoto 2003Grand Prix Shizuoka 2003Grand Prix Okayama 2004Grand Prix Sendai 2004Grand Prix Hiroshima 2006Grand Prix Yokohama 2013Grand Prix Nagoya 2014
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 578 | Morikawa, Taichi (1610) | Won 2-1 | +191618 |
| 2sealed | 511 | Maeda, Yoshiro (1518) | Won 2-0 | +161634 |
| 3sealed | 676 | Shoji, Tatsuro (1631) | Lost 1-2 | -181616 |
| 4sealed | 682 | Kajitani, Tsuyoshi (1573) | Won 2-0 | +171633 |
| 5sealed | 600 | Sasaki, Tsuyoshi (1629) | Won 2-1 | +181651 |
| 6sealed | 564 | Hamaguchi, Masakuni (1451) | Lost 0-2 | -221629 |
| 7sealed | 628 | Inagaki, Kaoru (1537) | Lost 1-2 | -191610 |
| top | average opponent: 1564record: 4-3 | new rating: 1610 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 871 | Kurose, Takashi (1500) | Won 2-0 | +161626 |
| 2sealed | 717 | Udagawa, Yoshihiko (1467) | Draw 1-1 | -21624 |
| 3sealed | 844 | Abe, Yusuke (1557) | Lost 1-2 | -201604 |
| 4sealed | 985 | Yokoyama, Kento (1393) | Won 2-1 | +151619 |
| 5sealed | 884 | Yoshioka, Ichita (1557) | Lost 1-2 | -201599 |
| top | average opponent: 1495record: 2-2-1 | new rating: 1599 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Ishizaki, Ryousuke (1446) | Won 2-0 | +161599 |
| 2sealed | 63 | Morishita, Taiki (1523) | Won 2-1 | +161615 |
| 3sealed | 50 | Kurihara, Shingou (1650) | Lost 0-2 | -171598 |
| 4sealed | 114 | Shimada, Hiroya (1532) | Lost 1-2 | -191579 |
| 5sealed | 104 | Yoshida, Kouki (1505) | Draw 1-1 | -21577 |
| 6sealed | 112 | Murayama, Terukazu (1511) | Won 2-1 | +171594 |
| 7sealed | 58 | Kashima, Akihiro (1580) | Won 2-1 | +181612 |
| 8sealed | 15 | Yamaguchi, Tetsuya (1534) | Draw 1-1 | -21610 |
| top | average opponent: 1535record: 4-2-2 | new rating: 1610 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 102 | Murakami, Shunsuke (1499) | Won 2-1 | +161624 |
| 3sealed | 68 | Maruyama, Hiromi (1516) | Lost 0-2 | -201604 |
| 4sealed | 102 | Itou, Shougo (1582) | Lost 0-2 | -181586 |
| 5sealed | 127 | Nitta, Kenichi (1498) | Won 2-0 | +161602 |
| 6sealed | 116 | Nakahara, Yuuya (1541) | Lost 0-2 | -191583 |
| top | average opponent: 1527record: 2-3 | new rating: 1583 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 12 | Nakajima, Chikara (1593) | Lost 1-2 | -191585 |
| 4extended | 75 | Nakaoka, Shinya (1474) | Won 2-1 | +161601 |
| 5extended | 69 | Nakamura, Kiyonari (1581) | Won 2-0 | +181619 |
| 6extended | 22 | Fukushima, Hirotomo (1517) | Won 2-1 | +161635 |
| 7extended | 15 | Nishimura, Norihito (1754) | Lost 0-2 | -161619 |
| 8extended | 43 | Maki, Koichiro (1782) | Won 2-0 | +211640 |
| 9extended | 22 | Hirosawa, Yuuta (1668) | Lost 1-2 | -171623 |
| 10extended | 6 | Nakazuka, Yuuki (1519) | Draw 1-1 | -21621 |
| 11extended | 9 | Maeba, Hideaki (1716) | Won 2-1 | +201641 |
| 12extended | 30 | Ibamoto, Masami (1726) | Lost 1-2 | -171624 |
| 13extended | 15 | Suzuki, Takaaki (1732) | Lost 0-2 | -161608 |
| top | average opponent: 1642record: 5-5-1 | new rating: 1608 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1665 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 62 | Umesawa, Takumi (1535) | Lost 1-2 | -201645 |
| 4sealed | 152 | Imai, Takashi (1535) | Lost 0-2 | -201625 |
| 5sealed | 157 | Takeuchi, Ryota (1440) | Lost 1-2 | -211604 |
| top | average opponent: 1504record: 0-3 | new rating: 1604 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1618 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 34 | Hassaku, Jinpei (1770) | Won 2-1 | +211639 |
| 4sealed | 29 | Kimura, Yoshihiro (1556) | Draw 1-1 | -21637 |
| 5sealed | 36 | Facchini, Nullo (1538) | Won 2-1 | +171654 |
| 6sealed | 18 | Fukuda, Kenichiro (1577) | Won 2-1 | +161670 |
| 7sealed | 8 | Nakamura, Satoshi (1662) | Won 2-1 | +181688 |
| 8sealed | 96 | Shiwaku, Tsuyoshi (1553) | Won 2-0 | +161704 |
| 9draft | 8 | Mizui, Shota (1637) | Lost 0-2 | -201684 |
| 10draft | 25 | Shiwaku, Tsuyoshi (1561) | Lost 0-2 | -201664 |
| 11draft | 8 | Morita, Masahiko (1846) | Won 2-1 | +221686 |
| 12draft | 22 | Nobushita, Jun (1721) | Won 2-1 | +181704 |
| 13draft | 29 | Kaji, Tomohiro (1639) | Lost 1-2 | -191685 |
| 14draft | 26 | Yamanishi, Mamoru (1591) | Lost 0-2 | -201665 |
| top | average opponent: 1638record: 7-4-1 | new rating: 1665 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1664 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 3 | Nose, Koji (1479) | Lost 1-2 | -211643 |
| 5extended | 54 | Tanaka, Yoshinori (1515) | Won 2-1 | +151658 |
| 6extended | 48 | Nakatani, Haruki (1558) | Lost 1-2 | -201638 |
| 7extended | 53 | Kawai, Masato (1519) | Lost 0-2 | -201618 |
| top | average opponent: 1518record: 1-3 | new rating: 1618 | ||
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 15 | Yamashita, Daisuke (1519) | Won 2-0 | +181581 |
| 4block | 18 | Morita, Yuki (1596) | Won 2-1 | +181599 |
| 5block | 11 | Momose, Kazuyuki (1699) | Won 2-0 | +201619 |
| 6block | 2 | Shinozaki, Yuu (1644) | Won 2-1 | +181637 |
| 7block | 3 | Yasooka, Shota (1537) | Won 2-0 | +161653 |
| 8block | 111 | Fujita, Osamu (1810) | Lost 1-2 | -151638 |
| 9block | 27 | Yamano, Tomoya (1632) | Won 2-0 | +181656 |
| 10block | 15 | Ito, Akitsugu (1711) | Won 2-0 | +191675 |
| 11block | 7 | Kinoshita, Junichi (1696) | Lost 0-2 | -181657 |
| 12block | 27 | Morita, Masahiko (1809) | Won 2-1 | +211678 |
| 13block | 14 | Ishida, Itaru (1848) | Lost 0-2 | -151663 |
| 14block | 22 | Yun, Suhan (1627) | Won 2-1 | +181681 |
| Qblock | Nakamura, Satoshi (1753) | Lost 1-2 | -171664 | |
| top | average opponent: 1683record: 9-4 | new rating: 1664 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 14 | Eura, Hiroki (1495) | Won 2-1 | +181538 |
| 3sealed | 2 | Umeda, Akira (1537) | Won 2-0 | +181556 |
| 4sealed | 18 | Koura, Masahiro (1618) | Won 2-1 | +191575 |
| 5sealed | 15 | Imai, Kimio (1521) | Lost 1-2 | -191556 |
| 6sealed | 27 | Komiya, Tadayoshi (1618) | Won 2-0 | +191575 |
| 7sealed | 11 | Ueda, Shigeki (1571) | Won 2-0 | +181593 |
| 8draft | 8 | Morita, Masahiko (1839) | Lost 0-2 | -141579 |
| 9draft | 19 | Mouri, Takemasa (1559) | Lost 0-2 | -181561 |
| 10draft | 28 | Murakami, Yuuki (Miyagi) (1675) | Won 2-1 | +201581 |
| 11draft | 19 | Takakuwa, Akihiro (1695) | Lost 0-2 | -161565 |
| 12draft | 25 | Nagao, Hakaru (1444) | Won 2-1 | +161581 |
| 13draft | 23 | Hata, Fumihiro (1600) | Lost 0-2 | -181563 |
| top | average opponent: 1598record: 7-5 | new rating: 1563 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 1 | Yoshikawa, Yuusuke (1614) | Lost 0-2 | -171557 |
| 5sealed | 59 | Ishii, Taisuke (1536) | Lost 0-2 | -191538 |
| 6sealed | 114 | Taru, Genki (1542) | Lost 0-2 | -181520 |
| top | average opponent: 1564record: 0-3 | new rating: 1520 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 210 | Tatsumi, Yasukazu (1517) | Lost 0-2 | -201596 |
| 4block | 274 | Fujii, Hajime (1518) | Won 2-1 | +171613 |
| 5block | 173 | Yamazaki, Hiroki (1572) | Lost 1-2 | -191594 |
| 6block | 357 | Masamura, Ayumu (1484) | Lost 1-2 | -201574 |
| top | average opponent: 1523record: 1-3 | new rating: 1574 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 133 | Sasaki, Shinjiro (1500) | Won 2-0 | +201449 |
| 2sealed | 93 | Nakajima, Chikara (1496) | Won 2-0 | +191468 |
| 3sealed | 41 | Yamano, Yuji (1536) | Lost 1-2 | -171451 |
| 4sealed | 83 | Taka, Norihisa (1518) | Won 2-1 | +191470 |
| 5sealed | 47 | Yabe, Yosuke (1553) | Won 2-1 | +201490 |
| 6sealed | 27 | Takeda, Hiroya (1522) | Won 2-1 | +181508 |
| 7sealed | 16 | Rikuno, Keito (1540) | Won 2-1 | +191527 |
| 8draft | 12 | Fujita, Kenichi (1653) | Won 2-1 | +201547 |
| 9draft | 5 | Tsukamoto, Toshiki (1751) | Lost 0-2 | -141533 |
| 10draft | 13 | Igawa, Yoshihiro (1604) | Won 2-0 | +191552 |
| 11draft | 8 | Yamamoto, Nao (1671) | Won 2-0 | +201572 |
| 12draft | 3 | Chuma, Yu (1617) | Won 2-0 | +191591 |
| 13draft | 3 | Shiozu, Ryouma (1623) | Won 2-0 | +191610 |
| Qdraft | Tsukamoto, Toshiki (1755) | Won 2-1 | +201630 | |
| Sdraft | Higashino, Masayuki (1837) | Lost 1-2 | -141616 | |
| top | average opponent: 1612record: 12-3 | new rating: 1616 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 127 | Kubouchi, Naoki (1465) | Lost 0-2 | -191481 |
| 4extended | 170 | Tanaka, Ittoku (1482) | Lost 0-2 | -181463 |
| 5extended | 169 | Iwamoto, Shota (1500) | Lost 0-2 | -171446 |
| 6extended | 233 | Heima, Yasutaka (1482) | Lost 1-2 | -171429 |
| 7extended | 223 | Morinaga, Kento (1465) | Won 2-0 | +181447 |
| 8extended | 182 | Choyama, Shuryu (1449) | Lost 0-2 | -181429 |
| top | average opponent: 1474record: 1-5 | new rating: 1429 | ||