Koyanagi, Takuya
Current rating: 1639
Record: 59-48
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 566 | Mikami, Yoshirou (1839) | Lost 0-2 | -141603 |
| 3sealed | 980 | Yamano, Tatsuto (1258) | Won 2-0 | +121615 |
| 4sealed | 680 | Muramatsu, Yasuhiro (1288) | Won 2-0 | +121627 |
| 5sealed | 194 | Sasahara, Takuya (1536) | Won 2-0 | +161643 |
| 6sealed | 145 | Saitou, Daisuke (1420) | Won 2-0 | +141657 |
| 7sealed | 187 | Hattori, Takesi (1607) | Lost 0-2 | -191638 |
| 8sealed | 303 | Yamagishi, Terutaka (1554) | Won 2-1 | +171655 |
| 9sealed | 175 | Kuze, Shouta (1814) | Lost 0-2 | -151640 |
| 10draft | 585 | Saitou, Ryuuga (1896) | Lost 1-2 | -141626 |
| 11draft | 584 | Maekawa, Kazumi (1566) | Won 2-0 | +171643 |
| 12draft | 585 | Shiwaku, Tsuyoshi (1809) | Lost 0-2 | -151628 |
| 13draft | 677 | Morita, Yuuki (1553) | Won 2-0 | +171645 |
| 14draft | 653 | Tobisawa, Takenori (1496) | Lost 0-2 | -211624 |
| 15draft | 647 | Yoneyama, Syougo (1457) | Won 2-0 | +151639 |
| top | average opponent: 1578record: 8-6 | new rating: 1639 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 179 | Matsubara, Hidenori (1554) | Won 2-1 | +181607 |
| 3sealed | 132 | Brandtner, Michael (1702) | Won 2-0 | +201627 |
| 4sealed | 233 | Tomiyama, Shin (1405) | Won 2-1 | +141641 |
| 5sealed | 39 | Miyabe, Kouichi (1698) | Lost 0-2 | -171624 |
| 6sealed | 208 | Iwamoto, Yoshiki (1542) | Lost 1-2 | -201604 |
| 7sealed | 383 | Honda, Yusuke (1462) | Lost 1-2 | -201584 |
| 8sealed | 523 | Ueki, Junichi (1425) | Won 2-0 | +151599 |
| 9sealed | 473 | Tabei, Hirotomo (1494) | Won 2-1 | +161615 |
| 10draft | 61 | Yasuda, Masahiro (1613) | Won 2-1 | +181633 |
| 11draft | 61 | Hayata, Shogo (1544) | Won 2-0 | +161649 |
| 12draft | 59 | Natsume, Takuya (1816) | Lost 1-2 | -151634 |
| 13draft | 246 | Kamimura, Tomoyuki (1660) | Lost 1-2 | -171617 |
| top | average opponent: 1576record: 7-5 | new rating: 1617 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 559 | Narita, Nobushige (1500) | Lost 1-2 | -201566 |
| 2standard | 877 | Konishi, Yoshimi (1362) | Won 2-0 | +151581 |
| 3standard | 788 | Nishimura, Masaaki (1418) | Won 2-0 | +151596 |
| 4standard | 819 | Nanjo, Masashi (1824) | Lost 0-2 | -141582 |
| 5standard | 839 | Kase, Koichi (1445) | Won 2-1 | +151597 |
| 6standard | 722 | Kameoka, Masashi (1482) | Won 2-1 | +161613 |
| 7standard | 517 | Sato, Masakazu (1540) | Lost 0-2 | -191594 |
| 8standard | 692 | Watanabe, Takeshi (1471) | Won 2-0 | +161610 |
| 9standard | 532 | Watanabe, Nobuyuki (1490) | Lost 1-2 | -211589 |
| top | average opponent: 1503record: 5-4 | new rating: 1589 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1618 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 220 | Suguru, Tukada (1500) | Won 2-1 | +161634 |
| 2legacy | 302 | Lizaso Legarda, Hasier (1515) | Lost 0-2 | -201614 |
| 3legacy | 629 | Iwama, Kento (1500) | Lost 0-2 | -201594 |
| 4legacy | 1075 | Kataoka, Tatsuya (1480) | Won 2-1 | +161610 |
| 5legacy | 607 | Hasegawa, Shinpei (1451) | Won 2-0 | +151625 |
| 6legacy | 483 | Hitomi, Masaaki (1720) | Lost 1-2 | -161609 |
| 7legacy | 819 | Obara, Hiroyuki (1503) | Won 2-1 | +161625 |
| 8legacy | 599 | Sunohara, Motoki (1616) | Lost 1-2 | -181607 |
| 9legacy | 562 | Abe, Naohisa (1451) | Lost 1-2 | -211586 |
| top | average opponent: 1526record: 4-5 | new rating: 1586 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 745 | Fukumoto, Tsuyoshi (1500) | Won 2-1 | +161596 |
| 2standard | 9 | Okamoto, Yuuya (1518) | Lost 1-2 | -191577 |
| 3standard | 1010 | Kuroda, Yoshirou (1479) | Lost 0-2 | -201557 |
| 4standard | 1055 | Yoshida, Hajime (1591) | Lost 1-2 | -171540 |
| 5standard | 1064 | Nishikawa, Shigeki (1283) | Won 2-0 | +131553 |
| 6standard | 853 | Sakurabayashi, Gaku (1516) | Won 2-0 | +171570 |
| 7standard | 661 | Kohki, Ogawa (1408) | Won 2-0 | +151585 |
| 8standard | 509 | Tada, Masayuu (1474) | Won 2-1 | +161601 |
| 9standard | 267 | Kitamura, Takuya (1542) | Won 2-0 | +171618 |
| top | average opponent: 1479record: 6-3 | new rating: 1618 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1641 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 80 | Tachikawa, Junya (1500) | Lost 0-2 | -201621 |
| 2sealed | 512 | Sakagami, Tsuyoshi (1482) | Lost 1-2 | -211600 |
| 3sealed | 583 | Naide, Kazutaka (1466) | Lost 0-2 | -201580 |
| top | average opponent: 1483record: 0-3 | new rating: 1580 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 670 | Yoshimura, Naoki (1483) | Won 2-0 | +141680 |
| 2sealed | 806 | Nagai, Rikiya (1517) | Won 2-1 | +151695 |
| 3sealed | 764 | Ushio, Atsushi (1739) | Lost 0-2 | -171678 |
| 4sealed | 787 | Ogura, Ryou (1805) | Lost 0-2 | -151663 |
| 5sealed | 970 | Saijo, Yuichi (1476) | Lost 0-2 | -221641 |
| top | average opponent: 1604record: 2-3 | new rating: 1641 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 61 | Shimizu, Souichirou (1537) | Won 2-0 | +161656 |
| 3modern | 30 | Saito, Takaya (1733) | Won 2-0 | +201676 |
| 4modern | 32 | Sakai, Yoshiki (1542) | Won 2-1 | +151691 |
| 5modern | 48 | Ishihara, Takashi5369 (1563) | Lost 1-2 | -201671 |
| 6modern | 158 | Nakamura, Yuta (1547) | Lost 1-2 | -201651 |
| 7modern | 220 | Matsumoto, Shou (1569) | Won 2-0 | +161667 |
| 8modern | 189 | Sasaki, Masaya (1381) | Won 2-0 | +131680 |
| 9modern | 93 | Ito, Atsushi (1884) | Lost 1-2 | -141666 |
| top | average opponent: 1595record: 5-3 | new rating: 1666 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 779 | Mizoguchi, Hideaki (1500) | Won 2-1 | +181523 |
| 2sealed | 612 | Mitsunda, Eiji (1518) | Won 2-0 | +171540 |
| 3sealed | 612 | Sasaki, Yusuke 6248 (1500) | Won 2-0 | +181558 |
| 4sealed | 539 | Yamakita, Yuya (1649) | Won 2-0 | +191577 |
| 5sealed | 548 | Oshima, Yuki (1612) | Won 2-1 | +191596 |
| 6sealed | 511 | Suzuki, Junpei (1585) | Lost 0-2 | -181578 |
| 7sealed | 528 | Harada, Daisaku (1671) | Won 2-1 | +201598 |
| 8sealed | 522 | Yamada, Hiroki (1588) | Lost 1-2 | -191579 |
| 9sealed | 556 | Bradford, Chris S (1589) | Won 2-0 | +191598 |
| 10draft | 86 | Shimoya, Hiroyuki (1763) | Won 2-1 | +211619 |
| 11draft | 42 | Makishita, Yamato (1583) | Lost 1-2 | -191600 |
| 12draft | 59 | Ootsuka, Yuusuke (1727) | Lost 1-2 | -161584 |
| 13draft | 104 | Takao, Naoki (1564) | Won 2-1 | +181602 |
| 14draft | 67 | Watanabe, Yusuke (1740) | Won 2-1 | +201622 |
| 15draft | 60 | Inoue, Yuusuke (1611) | Won 2-1 | +181640 |
| top | average opponent: 1613record: 11-4 | new rating: 1640 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Kazuki, Rika (1500) | Won 2-1 | +181539 |
| 2standard | 197 | Murata, Toshiaki (1715) | Lost 0-2 | -151524 |
| 3standard | 267 | Terawaki, Koji (1500) | Lost 1-2 | -191505 |
| 4standard | 291 | Kawanishi, Naoki (1482) | Won 2-0 | +181523 |
| 5standard | 308 | Mizuta, Isamu (1504) | Lost 1-2 | -181505 |
| top | average opponent: 1540record: 2-3 | new rating: 1505 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 103 | Nishikata, Yuuki (1500) | Won 2-1 | +201446 |
| 2standard | 338 | Higashi, Satoshi (1554) | Lost 0-2 | -161430 |
| 3standard | 369 | Inagaki, Yukihiro (1500) | Won 2-1 | +191449 |
| 4standard | 428 | Lin, Chris [HKG] (1516) | Won 2-0 | +191468 |
| 5standard | 355 | Kurakami, Shun (1646) | Won 2-0 | +211489 |
| 6standard | 99 | Ohori, Akihito (1464) | Won 2-0 | +181507 |
| 7standard | 129 | Nishikawa, Suguru (1572) | Won 2-0 | +191526 |
| 8standard | 54 | Honnami, Tomoyuki (1771) | Won 2-0 | +231549 |
| 9standard | 41 | Jo, Bunkun (1553) | Won 2-1 | +181567 |
| 10standard | 24 | Zhang, Meng Qiu (1800) | Lost 0-2 | -141553 |
| 11standard | 27 | Ohtani, Yuya (1730) | Lost 1-2 | -151538 |
| 12standard | 70 | Murakami, Keita (1597) | Lost 0-2 | -171521 |
| top | average opponent: 1600record: 8-4 | new rating: 1521 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 126 | Kobori, Tetsuhiro (1500) | Won 2-0 | +181518 |
| 2sealed | 123 | Sato, Daisuke (1420) | Lost 1-2 | -201498 |
| 3sealed | 212 | Mochizuki, Hiroyuki (1517) | Lost 0-2 | -171481 |
| 4sealed | 257 | Sugimori, Kazutaka (1481) | Lost 1-2 | -181463 |
| 5sealed | 235 | Katsuta, Souichi (1469) | Lost 0-2 | -181445 |
| 6sealed | 203 | Katayama, Hidenori (1430) | Lost 0-2 | -191426 |
| top | average opponent: 1470record: 1-5 | new rating: 1426 | ||