Horikawa, Hideaki
Current rating: 1552
Record: 38-35-3
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 327 | Takayama, Junichi (1531) | Won 2-0 | +181553 |
| 2standard | 22 | Suganuma, Kathuhiro (1370) | Lost 0-2 | -221531 |
| 3standard | 741 | Ozaki, Kei (1570) | Won 2-1 | +191550 |
| 4standard | 575 | Suguro, Takuya (1518) | Won 2-1 | +171567 |
| 5standard | 354 | Wentao, Qi (1918) | Lost 0-2 | -121555 |
| 6standard | 439 | Neki, Daisuke (1386) | Lost 1-2 | -211534 |
| 7standard | 444 | Hayashi, Masahiro (1502) | Won 2-1 | +181552 |
| top | average opponent: 1542record: 4-3 | new rating: 1552 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 314 | Koike, Yuta (1610) | Lost 1-2 | -151480 |
| 2legacy | 362 | Hamada, Yuusai (1490) | Won 2-0 | +181498 |
| 3legacy | 476 | Sugimoto, Hiroaki (1595) | Lost 0-2 | -171481 |
| 4legacy | 504 | Satou, Wataru (1491) | Won 2-0 | +191500 |
| 5legacy | 388 | Kimura, Yusuke (1516) | Lost 1-2 | -181482 |
| 6legacy | 483 | Nakajou, Naoto (1457) | Won 2-1 | +171499 |
| 7legacy | 408 | Arai, Tomoki (1488) | Won 2-1 | +181517 |
| 8legacy | 233 | Yoshida, Kenji (1479) | Won 2-1 | +181535 |
| top | average opponent: 1516record: 5-3 | new rating: 1535 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 70 | Hirai, Eiichi (1546) | Lost 1-2 | -181498 |
| 2standard | 242 | Anzai, Yasunobu (1482) | Won 2-0 | +181516 |
| 3standard | 253 | Kawasaki, Takeshi (1468) | Lost 0-2 | -191497 |
| 4standard | 309 | Higami, Keisuke (1519) | Won 2-1 | +181515 |
| 5standard | 302 | Tsuchiya, Yoshihiro (1401) | Lost 0-2 | -201495 |
| top | average opponent: 1483record: 2-3 | new rating: 1495 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 89 | Kanno, Masashi (1603) | Lost 1-2 | -181577 |
| 3sealed | 362 | Ohshiba, Atsushi (1488) | Lost 0-2 | -201557 |
| 4sealed | 399 | Tomioka, Teppei (1483) | Won 2-0 | +171574 |
| 5sealed | 370 | Muroda, Yuuki (1483) | Lost 0-2 | -201554 |
| 6sealed | 338 | Kinoshita, Akira (1484) | Lost 1-2 | -191535 |
| 7sealed | 273 | Tsuruoka, Tetsuya (1464) | Lost 0-2 | -191516 |
| top | average opponent: 1501record: 1-5 | new rating: 1516 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1647 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 395 | Mori, Tomohiro (1543) | Lost 0-2 | -201627 |
| 3standard | 591 | Yagi, Koutarou (1504) | Lost 0-2 | -201607 |
| 4standard | 590 | Kawada, Yuta (1482) | Won 2-0 | +151622 |
| 5standard | 496 | Enomoto, Masayuki (1516) | Won 2-0 | +161638 |
| 6standard | 336 | Muramatsu, Ryou (1499) | Won 2-1 | +161654 |
| 7standard | 274 | Tanaka, Atsushi (1618) | Lost 1-2 | -191635 |
| 8standard | 334 | Yoshida, Takefumi (1525) | Lost 1-2 | -201615 |
| 9standard | 324 | Tasaki, Yasuhiro (1481) | Lost 1-2 | -201595 |
| top | average opponent: 1521record: 3-5 | new rating: 1595 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 337 | Nam, Kyung Hwan (1410) | Lost 0-2 | -221588 |
| 2modern | 510 | Ookawa, Yuusuke (1541) | Won 2-1 | +171605 |
| 3modern | 320 | Yamagishi, Kenta (1502) | Lost 1-2 | -201585 |
| 4modern | 619 | Honda, Kazune (1482) | Won 2-0 | +161601 |
| 5modern | 440 | Chousa, Hajime (1499) | Won 2-1 | +171618 |
| 6modern | 372 | Komatsu, Satoru (1519) | Won 2-0 | +161634 |
| 7modern | 299 | Takahashi, Tetsuhiro (1576) | Lost 0-2 | -191615 |
| 8modern | 246 | Oshima, Yuki (1505) | Won 2-0 | +161631 |
| 9modern | 198 | Ooshima, Kazuyasu (1517) | Won 2-1 | +161647 |
| top | average opponent: 1506record: 6-3 | new rating: 1647 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 52 | Sugisawa, Tsuyoshi (1577) | Draw 1-1 | +21504 |
| 2standard | 222 | Takeda, Hirokazu (1502) | Won 2-0 | +181522 |
| 3standard | 118 | Ono, Takaya (1517) | Won 2-1 | +181540 |
| 4standard | 128 | Chi, Tatsuya (1622) | Won 2-1 | +191559 |
| 5standard | 65 | Date, Hideyuki (1563) | Won 2-0 | +181577 |
| 6standard | 34 | Iyanaga, Junya (1914) | Draw 1-1 | +61583 |
| 7standard | 75 | Matsuyama, Satoshi (1662) | Won 2-1 | +191602 |
| 8standard | 44 | Katagiri, Shinichi (1702) | Won 2-0 | +201622 |
| 9standard | 26 | Asahara, Akira (1981) | Draw 1-1 | +71629 |
| 10standard | 24 | Sasaki, Yuuta (1926) | Lost 1-2 | -131616 |
| 11standard | 43 | Marr, Mat (1692) | Lost 0-2 | -171599 |
| 12standard | 59 | Kuo, Tzu-Ching (1980) | Lost 0-2 | -111588 |
| 13standard | 60 | Matsuo, Yoshiyuki (1520) | Won 2-0 | +171605 |
| 14standard | 58 | Marcik, Michal (1750) | Won 2-1 | +201625 |
| 15standard | 46 | Okada, Wataru (1762) | Lost 0-2 | -151610 |
| top | average opponent: 1711record: 8-4-3 | new rating: 1610 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 129 | Tanabe, Atsushi (1465) | Lost 0-2 | -201539 |
| 2extended | 486 | Matsumoto, Yasuna (1483) | Lost 0-2 | -191520 |
| 3extended | 451 | Watanabe, Masayoshi (1525) | Lost 1-2 | -181502 |
| top | average opponent: 1491record: 0-3 | new rating: 1502 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Yoshizawa, Takuya (1518) | Won 2-1 | +181543 |
| 2sealed | 118 | Muguro, Kaito (1518) | Lost 0-2 | -181525 |
| 3sealed | 233 | Kasuga, Hiroyuki (1500) | Won 2-0 | +171542 |
| 4sealed | 176 | Ueki, Yuuya (1515) | Won 2-1 | +181560 |
| 5sealed | 88 | Sakuraba, Ryouhei (1539) | Won 2-1 | +171577 |
| 6sealed | 37 | Ikawa, Yoshihiko (1577) | Won 2-1 | +181595 |
| 7sealed | 35 | Wang, Ming Chee (1596) | Lost 0-2 | -181577 |
| 8sealed | 79 | Uemura, Kazuya (1561) | Lost 1-2 | -181559 |
| top | average opponent: 1541record: 5-3 | new rating: 1559 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 109 | Moriyama, Masahiro (1518) | Won 2-0 | +181518 |
| 3block | 15 | Koyama, Kenta (1605) | Lost 0-2 | -161502 |
| 4block | 137 | Igeta, Hirofumi (1621) | Lost 0-2 | -161486 |
| 5block | 130 | Kawakami, Hiroshi (1438) | Won 2-0 | +171503 |
| 6block | 98 | Yamakage, Dai (1521) | Won 1-0 | +191522 |
| 7block | 80 | Sawata, Michiaki (1541) | Won 2-1 | +181540 |
| 8block | 64 | Nomura, Eiji (1720) | Lost 1-2 | -151525 |
| top | average opponent: 1566record: 4-3 | new rating: 1525 | ||