Ohashi, Gaku
Current rating: 1603
Record: 77-68-3
- 2009
- 2010
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 339 | Moriya, Jun (1873) | Won 2-0 | +221647 |
| 3standard | 254 | Ooyama, Shinnosuke (1500) | Lost 0-2 | -201627 |
| 4standard | 271 | Ohshiro, Syusaku (1705) | Lost 1-2 | -171610 |
| 5standard | 674 | Yamashita, Kouhei (1505) | Won 2-0 | +161626 |
| 6standard | 450 | Rita, Takayuki (1601) | Won 2-0 | +181644 |
| 7standard | 264 | Adachi, Ryosuke (1614) | Lost 1-2 | -191625 |
| 8standard | 345 | Yokomizo, Gouki (1421) | Lost 1-2 | -221603 |
| top | average opponent: 1603record: 3-4 | new rating: 1603 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1687 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 151 | Takeichi, Yugo (1461) | Lost 0-2 | -221665 |
| 3sealed | 793 | Negishi, Haruki (1565) | Lost 0-2 | -201645 |
| 4sealed | 870 | Miki, Kazuhiro (1530) | Lost 0-2 | -201625 |
| top | average opponent: 1519record: 0-3 | new rating: 1625 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1612 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 151 | Chiba, Toshiki (1465) | Won 2-0 | +151627 |
| 2modern | 224 | Wada, Yuta (1471) | Won 2-1 | +151642 |
| 3modern | 190 | Yamasaki, Yuuta (1460) | Won 2-0 | +151657 |
| 4modern | 45 | Kobayashi, Jotaro (1749) | Lost 1-2 | -161641 |
| 5modern | 382 | Umehara, Kei (1618) | Lost 1-2 | -191622 |
| 6modern | 570 | Marui, Yuki (1653) | Won 2-1 | +191641 |
| 7modern | 309 | Matsui, Tatsuyoshi (1509) | Won 2-0 | +151656 |
| 8modern | 269 | Kusafuka, Takuma (1518) | Won 2-0 | +161672 |
| 9modern | 140 | Rita, Takayuki (1663) | Won 2-0 | +181690 |
| 10modern | 52 | Shimamura, Yukihiro (1649) | Lost 1-2 | -191671 |
| 11modern | 168 | Otahara, Sho (1683) | Won 2-1 | +181689 |
| 12modern | 118 | Ishiwata, Kouichi (1674) | Won 2-0 | +181707 |
| 13modern | 53 | Aka, Shunsuke (1646) | Lost 1-2 | -191688 |
| 14modern | 119 | Kawaguchi, Takashi (1662) | Won 2-0 | +171705 |
| 15modern | 96 | Hoshino, Yuuki (1678) | Lost 1-2 | -181687 |
| top | average opponent: 1607record: 10-5 | new rating: 1687 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 379 | Sakamoto, Yuki (1538) | Won 2-0 | +171604 |
| 2standard | 332 | Higashida, Naoki (1518) | Won 2-1 | +161620 |
| 3standard | 330 | Kitagawa, Hiroyuki (1687) | Won 2-0 | +201640 |
| 4standard | 189 | Jinbo, Takashi (1592) | Won 2-1 | +171657 |
| 5standard | 100 | Nuruki, Hiroaki (1990) | Lost 0-2 | -121645 |
| 6standard | 136 | Tsuchiya, Hideaki (1921) | Lost 0-2 | -141631 |
| 7standard | 340 | Maeda, Takuma (1532) | Lost 0-2 | -191612 |
| top | average opponent: 1683record: 4-3 | new rating: 1612 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 466 | Motegi, Ryouta (1441) | Lost 1-2 | -211601 |
| 2sealed | 967 | Yamamoto, Yuusuke (1348) | Lost 0-2 | -231578 |
| 3sealed | 1151 | Nagase, Hirofumi (1313) | Won 2-0 | +131591 |
| 4sealed | 1023 | Kihara, Yasuyuki (1438) | Won 2-0 | +161607 |
| 5sealed | 848 | Nagano, Masahiro (1502) | Lost 1-2 | -201587 |
| top | average opponent: 1409record: 2-3 | new rating: 1587 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 37 | Takenaka, Kenta (1485) | Won 2-0 | +171558 |
| 3modern | 309 | Ohmoto, Masaya (1426) | Won 2-1 | +151573 |
| 4modern | 309 | Ninagawa, Makoto (1530) | Won 2-1 | +181591 |
| 5modern | 97 | Nisio, Tomoyasu (1572) | Won 2-1 | +171608 |
| 6modern | 6 | Anderson, Kyle (1554) | Won 2-1 | +171625 |
| 7modern | 20 | Yao, Shunsuke (1720) | Won 2-1 | +201645 |
| 8modern | 19 | Moriya, Ryo (1600) | Won 2-1 | +171662 |
| 9modern | 7 | Wu, Kon Fai (1932) | Lost 1-2 | -131649 |
| 10modern | 41 | Saijo, Yuichi (1873) | Lost 1-2 | -141635 |
| 11modern | 98 | Soejima, Yuichi (1617) | Won 2-0 | +181653 |
| 12modern | 32 | Maruya, Takashi (1676) | Lost 0-2 | -181635 |
| 13modern | 100 | Okamoto, Keita (1751) | Lost 0-2 | -161619 |
| 14modern | 146 | Miyoshi, Nobumitsu (1499) | Won 2-1 | +161635 |
| 15modern | 80 | Saito, Takaya (1906) | Lost 0-2 | -131622 |
| top | average opponent: 1653record: 9-5 | new rating: 1622 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 367 | Iwasawa, Fumiya (1792) | Lost 0-2 | -141583 |
| 3standard | 750 | Shibata, Syouhei (1517) | Won 2-0 | +171600 |
| 4standard | 381 | Matsumoto, Shou (1410) | Lost 1-2 | -221578 |
| 5standard | 730 | Suzuki, Kazuhiro (1385) | Lost 0-2 | -211557 |
| 6standard | 972 | Watanabe, Yuta (1676) | Lost 0-2 | -161541 |
| top | average opponent: 1556record: 1-4 | new rating: 1541 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1588 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 115 | Ide, Masatoshi (1518) | Won 2-0 | +161604 |
| 3legacy | 30 | Nishimura, Tatsuya (1527) | Lost 1-2 | -191585 |
| 4legacy | 408 | Iwamura, Yusuke (1506) | Lost 1-2 | -201565 |
| 5legacy | 714 | Tanimura, Taiju (1507) | Won 2-0 | +171582 |
| 6legacy | 427 | Sugiyama, Ritsuki (1515) | Won 2-0 | +171599 |
| 7legacy | 313 | Okuyama, Kouhei (1476) | Won 2-1 | +161615 |
| 8legacy | 235 | Hayakawa, Yohei (1562) | Won 2-0 | +171632 |
| 9legacy | 128 | Dong, Pu (1596) | Lost 1-2 | -191613 |
| 10legacy | 294 | Choca, Joao (1723) | Lost 0-2 | -161597 |
| top | average opponent: 1548record: 5-4 | new rating: 1597 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 352 | Tsukada, Atsushi (1538) | Won 2-0 | +171608 |
| 4standard | 93 | Matsumoto, Tomohiro (1556) | Lost 0-2 | -191589 |
| 5standard | 622 | Matsui, Hiroki (1486) | Won 2-0 | +161605 |
| 6standard | 213 | Kawasaki, Hideaki (1592) | Won 2-1 | +181623 |
| 7standard | 153 | Kawahama, Yoshikazu (1711) | Lost 0-2 | -171606 |
| 8standard | 361 | Nakano, Kenta (1625) | Won 2-1 | +191625 |
| 9standard | 275 | Sato, Hikaru (Gunma) (1561) | Lost 0-2 | -201605 |
| 10standard | 432 | Kazaoka, Nicholle (1615) | Lost 1-2 | -171588 |
| top | average opponent: 1585record: 4-4 | new rating: 1588 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 54 | Matsuura, Shuhei (1510) | Lost 1-2 | -201608 |
| 4sealed | 695 | Shiwaku, Tsuyoshi (1716) | Lost 0-2 | -161592 |
| 5sealed | 870 | Ushikubo, Kenichi (1493) | Lost 0-2 | -201572 |
| 6sealed | 883 | Kong, Chong Teng (1495) | Won 2-1 | +171589 |
| 7sealed | 652 | Tasugi, Keigo (1459) | Won 2-0 | +161605 |
| 8sealed | 423 | Ishii, Hayato (1823) | Lost 0-2 | -141591 |
| top | average opponent: 1583record: 2-4 | new rating: 1591 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1619 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 315 | Kagotani, Naota (1420) | Lost 1-2 | -211598 |
| 4standard | 386 | Furukawa, Hiroki (1576) | Lost 0-2 | -191579 |
| 5standard | 783 | Nunotani, Kousuke (1592) | Won 2-0 | +191598 |
| 6standard | 449 | Ebara, Satoshi (1448) | Won 2-0 | +151613 |
| 7standard | 490 | Kakimoto, Yuki (1440) | Won 2-1 | +151628 |
| 8standard | 345 | Hayashi, Naoki (1561) | Lost 1-2 | -191609 |
| 9standard | 300 | Hirami, Tomonori (1717) | Won 2-1 | +191628 |
| top | average opponent: 1536record: 4-3 | new rating: 1628 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 931 | Saitou, Keita4204 (1538) | Won 2-1 | +161626 |
| 4sealed | 842 | Yeo, Tinghui (1566) | Won 2-0 | +171643 |
| 5sealed | 829 | Yazawa, Yoshimichi (1453) | Lost 1-2 | -211622 |
| 6sealed | 897 | Hirano, Mikita (1573) | Won 2-1 | +171639 |
| 7sealed | 841 | Takuwa, Kazuya (1576) | Lost 0-2 | -191620 |
| 8sealed | 881 | Horita, Toshiki (1619) | Won 2-0 | +181638 |
| 9sealed | 859 | Nomoto, Hidetaka (1611) | Lost 1-2 | -191619 |
| top | average opponent: 1562record: 4-3 | new rating: 1619 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1595 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 184 | Cheol, Jeon (1500) | Won 2-1 | +161611 |
| 4legacy | 55 | Mori, Tatsunori (1519) | Won 2-1 | +171628 |
| 5legacy | 51 | Kato, Kensuke (1680) | Won 2-0 | +191647 |
| 6legacy | 3 | Tomizawa, Shin (1523) | Lost 1-2 | -211626 |
| 7legacy | 40 | Fukunaga, Keisuke (1588) | Lost 1-2 | -181608 |
| 8legacy | 117 | Hanawa, Atsushi (1540) | Won 2-1 | +161624 |
| 9legacy | 56 | Matsuda, Issui (1703) | Won 2-0 | +201644 |
| 10legacy | 44 | Ruel, Olivier (1783) | Lost 1-2 | -161628 |
| 11legacy | 76 | Takeuchi, Jun (1706) | Lost 0-2 | -161612 |
| 12legacy | 108 | Kajiwara, Shou (1664) | Lost 0-2 | -171595 |
| 13legacy | 105 | Ebihara, Hirotaka (1575) | Won 2-0 | +171612 |
| 14legacy | 87 | Ikeda, Takuro (1552) | Won 2-0 | +171629 |
| 15legacy | 86 | awai, Motoki (1543) | Lost 0-2 | -191610 |
| top | average opponent: 1606record: 7-6 | new rating: 1610 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 345 | Taniguchi, Kouhei (1507) | Won 2-1 | +171587 |
| 2modern | 204 | Hisano, Mikita (1495) | Won 2-0 | +161603 |
| 3modern | 27 | Hibino, Yasutaka (1631) | Lost 0-2 | -171586 |
| 4modern | 147 | Matoba, Keisuke (1482) | Won 2-0 | +161602 |
| 5modern | 160 | Uchida, Kenta (1538) | Won 2-1 | +171619 |
| 6modern | 166 | Sadahiro, Masashi (1484) | Lost 0-2 | -211598 |
| 7modern | 225 | Nakane, Masatoshi (1537) | Draw 1-1 | -11597 |
| 8modern | 206 | Arai, Ryo (1548) | Won 2-0 | +171614 |
| 9modern | 153 | Hashimoto, Naoya (1551) | Lost 1-2 | -191595 |
| top | average opponent: 1530record: 5-3-1 | new rating: 1595 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 657 | Matsuo, Hiroyuki (1526) | Lost 0-2 | -181508 |
| 3standard | 724 | Yamada, Hiroshi (1494) | Won 2-0 | +181526 |
| 4standard | 755 | Wang, Chih Ming (1611) | Lost 0-2 | -171509 |
| 5standard | 739 | Tabe, Keita (1650) | Won 2-1 | +211530 |
| 6standard | 653 | Karikome, Hiroaki (1506) | Won 2-0 | +171547 |
| 7standard | 682 | Saida, Kazuki (1522) | Won 2-0 | +181565 |
| 8standard | 566 | Terada, Tadashi (1573) | Lost 1-2 | -181547 |
| 9standard | 724 | Yotsumoto, Yuki (1828) | Won 2-0 | +231570 |
| top | average opponent: 1589record: 5-3 | new rating: 1570 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 228 | Izumida, Takuma (1433) | Draw 1-1 | -11506 |
| 2modern | 410 | Saeki, Tomoya (1481) | Won 2-0 | +171523 |
| 3modern | 272 | Sekiguchi, Takeshi (1518) | Won 2-0 | +181541 |
| 4modern | 181 | Komiya, Tadayoshi (1736) | Lost 0-2 | -141527 |
| 5modern | 328 | Fukuhara, Taiki (1536) | Draw 1-1 | 01527 |
| 6modern | 435 | Kurihara, Tomo (1471) | Won 2-1 | +171544 |
| 7modern | 314 | Sasaki, Tsuyoshi (1543) | Lost 1-2 | -181526 |
| top | average opponent: 1531record: 3-2-2 | new rating: 1526 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 321 | yamazaki, ryouta (1500) | Won 2-0 | +181543 |
| 2standard | 19 | Ino, Kentaro (1696) | Won 2-1 | +211564 |
| 3standard | 29 | Matsuyama, Takenori (1454) | Lost 0-2 | -201544 |
| 4standard | 200 | Nakayama, Yuuki (1455) | Lost 0-2 | -201524 |
| 5standard | 244 | Yamada, Sintarou (1582) | Lost 0-2 | -171507 |
| top | average opponent: 1537record: 2-3 | new rating: 1507 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 157 | Yoshimura, Motoki (1320) | Won 2-0 | +151495 |
| 2extended | 101 | Suzuki, Takaaki (1763) | Won 2-0 | +231518 |
| 3extended | 70 | Matsuura, Hiroyuki (1536) | Lost 1-2 | -181500 |
| 4extended | 291 | Ohno, Hirofumi (1520) | Won 2-1 | +191519 |
| 5extended | 133 | Muramatsu, Daisuke (1600) | Lost 0-2 | -171502 |
| 6extended | 279 | Yamamoto, Daichi (1506) | Won 2-0 | +181520 |
| 7extended | 134 | Nakajima, Chikara (1757) | Won 2-0 | +221542 |
| 8extended | 133 | Yao, Shunsuke (1593) | Lost 1-2 | -171525 |
| top | average opponent: 1574record: 5-3 | new rating: 1525 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 126 | Aono, Yoshio (1478) | Lost 1-2 | -181482 |
| 2sealed | 263 | Sato, Shintaro (1482) | Lost 0-2 | -181464 |
| 3sealed | 290 | Oota, Shigeru (1462) | Won 2-1 | +181482 |
| 4sealed | 237 | Tsuba, Yuuki (1399) | Won 2-1 | +161498 |
| 5sealed | 246 | Fujita, Shunsuke (1498) | Lost 1-2 | -181480 |
| top | average opponent: 1464record: 2-3 | new rating: 1480 | ||