Andou, Koutarou
Current rating: 1511
Record: 73-63-6 (GP) / 8-10 (professional)
- 1998
- 2000
- 2001
- 2002
- 2004
- 2005
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 301 | Kimonji, Hiroki (1495) | Won 2-0 | +181505 |
| 2standard | 458 | Takeshita, Toru (1730) | Won 2-1 | +221527 |
| 3standard | 584 | Haritani, Ryosuke (1577) | Lost 0-2 | -171510 |
| 4standard | 761 | Tsuchiya, Ryuichi (1591) | Won 2-0 | +191529 |
| 5standard | 311 | Nakai, Yoshiharu (1524) | Lost 0-2 | -181511 |
| 6standard | 490 | Tomiyama, Katsuhiko (1520) | Draw 1-1 | 01511 |
| top | average opponent: 1573record: 3-2-1 | new rating: 1511 | ||
| Grand Prix Hong Kong 2018 (modern) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 202 | Alivio, Ramon (1615) | Lost 1-2 | -151463 |
| 2modern | 234 | Tian, Cong (1484) | Won 2-0 | +181481 |
| 3modern | 246 | Wong, Sam (1468) | Won 2-0 | +181499 |
| 4modern | 213 | Vallesteros, Xezur (1517) | Lost 0-2 | -181481 |
| 5modern | 294 | Chen, Wei Hua (1487) | Won 2-0 | +181499 |
| 6modern | 147 | Mihic, Sava (1797) | Lost 1-2 | -121487 |
| top | average opponent: 1561record: 3-3 | new rating: 1487 | ||
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Ooi Jia Tong, Daniel (1500) | Won 2-1 | +191504 |
| 2standard | 121 | Peterson, Mikal (1481) | Lost 0-2 | -191485 |
| 3standard | 201 | Gonzalez, Marco G (1688) | Won 2-0 | +221507 |
| 4standard | 181 | Sugiyama, Yuya (1926) | Lost 0-2 | -111496 |
| 5standard | 185 | Chang, Cheng Yu (1665) | Won 2-1 | +211517 |
| 6standard | 135 | Luo, Xi (1347) | Lost 1-2 | -211496 |
| 7standard | 175 | Wee Yongzhi, David (1517) | Lost 0-2 | -181478 |
| top | average opponent: 1589record: 3-4 | new rating: 1478 | ||
| Grand Prix Shanghai 2017 (XLN standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 76 | Chen, Xinrong (1534) | Lost 1-2 | -181520 |
| 2standard | 176 | Li, Yang (1576) | Won 2-0 | +191539 |
| 3standard | 220 | Nakamura, Junya (1674) | Lost 1-2 | -151524 |
| 4standard | 292 | Cao, Aihao (1486) | Lost 0-1 | -191505 |
| 5standard | 302 | Chen, Minwei (1401) | Lost 1-2 | -201485 |
| top | average opponent: 1534record: 1-4 | new rating: 1485 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1637 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 67 | Hiroyama, Tomoki (1500) | Lost 0-2 | -211616 |
| 2modern | 865 | Shirai, Shota (1485) | Lost 1-2 | -201596 |
| 3modern | 1297 | Furuuchi, Kaoru (1462) | Lost 0-2 | -201576 |
| 4modern | 1275 | Mori, Syuuichi (1396) | Lost 1-2 | -221554 |
| 5modern | 1280 | Kato, Tomonori (1342) | Draw 1-1 | -31551 |
| 6modern | 1213 | Mitsuhisa, Masaru (1404) | Won 2-0 | +151566 |
| 7modern | 1089 | Yadu, Yoshiki (1298) | Won 2-1 | +131579 |
| 8modern | 910 | Shiraishi, Ryuji (1432) | Lost 0-2 | -201559 |
| 9modern | 822 | Saegusa, Nobuyuki (1446) | Lost 1-2 | -211538 |
| top | average opponent: 1418record: 2-6-1 | new rating: 1538 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1619 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 237 | Endou, Taiki (1526) | Won 2-0 | +161635 |
| 2standard | 445 | Tsutsui, Yuki (1639) | Lost 1-2 | -181617 |
| 3standard | 946 | Furukawa, Takuto (1437) | Won 2-1 | +151632 |
| 4standard | 522 | Takamatu, Makoto (1515) | Won 2-0 | +161648 |
| 5standard | 523 | Odagiri, Mato (1510) | Lost 1-2 | -211627 |
| 6standard | 432 | Watanabe, Shogo5163 (1502) | Won 2-0 | +161643 |
| 7standard | 575 | Takano, Kodai (1554) | Draw 1-1 | -21641 |
| 8standard | 441 | Shinta, Tsuneto (1548) | Won 2-1 | +171658 |
| 9standard | 289 | Hickling, Adam (1512) | Lost 1-2 | -211637 |
| top | average opponent: 1527record: 5-3-1 | new rating: 1637 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1656 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 325 | Sunayama, Tatsuya (1500) | Lost 0-2 | -211635 |
| 2legacy | 674 | Amagai, Masahiro (1445) | Won 2-0 | +151650 |
| 3legacy | 635 | Kubota, Kei (1499) | Lost 0-2 | -211629 |
| 4legacy | 1071 | Hukuoka, Yutaka (1464) | Lost 0-2 | -211608 |
| 5legacy | 982 | Abe, Yoshinobu (1464) | Won 2-1 | +151623 |
| 6legacy | 848 | Nguyen, Tri (1464) | Won 2-0 | +161639 |
| 7legacy | 824 | Sawatari, Kai (1532) | Lost 1-2 | -201619 |
| top | average opponent: 1481record: 3-4 | new rating: 1619 | ||
| Grand Prix Taipei 2016 (SOI standard) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2 | Chong, Tsz Lam (1601) | Lost 0-2 | -191638 |
| 2standard | 166 | Hsu, Jeremy (1770) | Won 2-0 | +201658 |
| 3standard | 280 | Liau, Liang-Wei (1484) | Won 2-1 | +151673 |
| 4standard | 147 | Liao, Li-Dung (1485) | Lost 0-2 | -211652 |
| 5standard | 1022 | Qian, Zhengrui (1543) | Won 2-0 | +161668 |
| 6standard | 158 | Yamaguchi, Yuji (1536) | Lost 1-2 | -201648 |
| 7standard | 202 | Komachi, Akinori (1509) | Won 2-0 | +151663 |
| 8standard | 165 | Wang, Chien Jen (1475) | Won 2-0 | +151678 |
| 9standard | 134 | Lu, Tung Ken (1478) | Lost 0-2 | -221656 |
| top | average opponent: 1542record: 5-4 | new rating: 1656 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1699 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Saegusa, Nobuyuki (1606) | Won 2-0 | +161715 |
| 2standard | 47 | Nakagami, Takanori (1491) | Won 2-0 | +141729 |
| 3standard | 189 | Mizuno, Nobuyoshi (1473) | Lost 1-2 | -231706 |
| 4standard | 907 | Tanino, Kouhei (1525) | Won 2-1 | +151721 |
| 5standard | 362 | Miyake, Hideyuki (1539) | Lost 0-2 | -211700 |
| 6standard | 595 | Akai, Kouki (1528) | Lost 1-2 | -211679 |
| 7standard | 795 | Otsubo, Yuma (1481) | Lost 1-2 | -221657 |
| top | average opponent: 1521record: 3-4 | new rating: 1657 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1637 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 530 | Ushio, Atsushi (1819) | Lost 1-2 | -151622 |
| 2standard | 816 | Oota, Shingo (1444) | Won 2-0 | +151637 |
| 3standard | 936 | Semura, Junichi (1645) | Won 2-0 | +181655 |
| 4standard | 634 | Shibata, Toru (1410) | Lost 0-2 | -231632 |
| 5standard | 786 | Minami, Masashi (1624) | Won 2-1 | +181650 |
| 6standard | 448 | Hibino, Yasutaka (1630) | Won 2-1 | +181668 |
| 7standard | 442 | Higashida, Tetsuaki (1525) | Won 2-1 | +151683 |
| 8standard | 272 | Jinbo, Takashi (1474) | Won 2-1 | +151698 |
| 9standard | 164 | Imaoka, Syoichi (1569) | Won 2-0 | +151713 |
| 10standard | 137 | Yamamoto, Shohei (1760) | Lost 1-2 | -171696 |
| 11standard | 118 | Yasuda, Seita (1724) | Draw 1-1 | +11697 |
| 12standard | 118 | Kamei, Masataka (1674) | Won 2-1 | +171714 |
| 13standard | 89 | Yoshimori, Sho (1842) | Won 2-0 | +211735 |
| 14standard | 59 | Saitou, Ryuuga (1794) | Lost 0-2 | -171718 |
| 15standard | 88 | Kawashita, Makoto (1661) | Lost 1-2 | -191699 |
| top | average opponent: 1640record: 9-5-1 | new rating: 1699 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1680 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 711 | Shiba, Joutarou (1441) | Lost 0-2 | -231657 |
| 2sealed | 742 | Horie, Takaaki (1511) | Lost 1-2 | -201637 |
| top | average opponent: 1476record: 0-2 | new rating: 1637 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1694 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 14 | Sasada, Youhei (1498) | Won 2-1 | +141708 |
| 2sealed | 201 | Shijou, Haruka (1518) | Lost 1-2 | -211687 |
| 3sealed | 271 | Yokoyama, Takaya (1500) | Won 2-0 | +141701 |
| 4sealed | 200 | Takagi, Yui (1792) | Lost 0-2 | -161685 |
| 5sealed | 242 | Yamazaki, Yuuki (Kanagawa) (1540) | Won 2-0 | +151700 |
| 6sealed | 275 | Choi, Suouk (1539) | Lost 0-2 | -201680 |
| top | average opponent: 1564record: 3-3 | new rating: 1680 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1722 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 50 | Sato, Takatoshi (1654) | Won 2-0 | +171739 |
| 2standard | 25 | Furugen, Takeji (1429) | Won 2-0 | +121751 |
| 3standard | 266 | Tsuda, Seiya (1538) | Lost 1-2 | -221729 |
| 4standard | 422 | Sawada, Atushi (1517) | Won 2-1 | +141743 |
| 5standard | 156 | Kitabayashi, Takashi (1661) | Won 2-0 | +171760 |
| 6standard | 102 | Uemoto, Takahiro (1506) | Lost 1-2 | -231737 |
| 7standard | 242 | Kikuchi, Shou (1495) | Lost 0-2 | -221715 |
| 8standard | 333 | Kamakura, Jun (1532) | Lost 1-2 | -211694 |
| top | average opponent: 1541record: 4-4 | new rating: 1694 | ||
| Pro Tour Nagoya 2005 (COK rochester) | starting rating: 1768 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 62 | Anzorena, Pablo (1453) | Lost 1-2 | -241744 |
| 2rochester | 38 | Ogura, Ryou (1764) | Lost 0-2 | -181726 |
| 3rochester | 92 | Snepvangers, Bram (1710) | Won 2-1 | +181744 |
| 4rochester | 51 | Gurevich, Alexander (1502) | Lost 1-2 | -221722 |
| top | average opponent: 1607record: 1-3 | new rating: 1722 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1668 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 45 | Hayashi, Yuki (1462) | Won 2-0 | +141682 |
| 4sealed | 66 | Sasagawa, Tomohide (1701) | Won 2-0 | +191701 |
| 5sealed | 18 | Mutou, Kouhei (1692) | Won 2-1 | +171718 |
| 6sealed | 10 | Arahori, Kazuaki (1668) | Lost 1-2 | -181700 |
| 7sealed | 41 | Sugimura, Yoshiyasu (1565) | Won 2-1 | +151715 |
| 8sealed | 131 | Sugiura, Hiroki (1624) | Won 2-1 | +161731 |
| 9rochester | 23 | Yamaguchi, Yuuichi (1610) | Won 2-1 | +161747 |
| 10rochester | 7 | Akiyama, Takashi (1627) | Lost 0-2 | -201727 |
| 11rochester | 19 | Taru, Genki (1709) | Won 2-1 | +181745 |
| 12rochester | 25 | Saito, Tomoharu (1871) | Won 2-1 | +201765 |
| 13rochester | 16 | Hashimoto, Rei (1780) | Lost 1-2 | -181747 |
| 14rochester | 21 | Mihara, Makihito (1875) | Won 2-0 | +211768 |
| top | average opponent: 1682record: 9-3 | new rating: 1768 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 65 | Nakagawa, Yu (1558) | Won 2-1 | +181611 |
| 4sealed | 49 | Saitou, Takahiro (1539) | Won 2-0 | +161627 |
| 5sealed | 28 | Watanabe, Shinji (1547) | Won 2-1 | +171644 |
| 6sealed | 13 | Higashino, Masayuki (1780) | Lost 1-2 | -161628 |
| 7sealed | 35 | Rikuno, Keito (1593) | Lost 1-2 | -181610 |
| 8sealed | 98 | Morimoto, Manabu (1563) | Won 2-1 | +171627 |
| 9rochester | 32 | Yamadaya, Kohei (1708) | Won 2-1 | +191646 |
| 10rochester | 21 | Juumonji, Tarou (1652) | Won 2-0 | +181664 |
| 11rochester | 14 | Komiya, Tadayoshi (1667) | Lost 1-2 | -171647 |
| 12rochester | 18 | Higashino, Masayuki (1766) | Won 2-0 | +201667 |
| 13rochester | 2 | Ishikawa, Ren (1731) | Won 2-1 | +191686 |
| 14rochester | 7 | Kubota, Yuuhi (1694) | Lost 0-2 | -181668 |
| top | average opponent: 1650record: 8-4 | new rating: 1668 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 21 | Niwa, Toshiharu (1558) | Won 2-1 | +181568 |
| 5sealed | 12 | Hatanaka, Kenichi (1502) | Won 2-0 | +171585 |
| 6sealed | 4 | Koura, Masahiro (1591) | Lost 0-2 | -181567 |
| 7sealed | 8 | Murakami, Yuki (1721) | Won 2-1 | +211588 |
| 8draft | 13 | Higaki, Takao (1655) | Lost 0-2 | -171571 |
| 9draft | 14 | Douyama, Tsuyoshi (1702) | Won 2-0 | +201591 |
| 10draft | 11 | Koura, Masahiro (1595) | Won 2-1 | +181609 |
| 11draft | 10 | Nada, Satoshi (1594) | Won 2-0 | +181627 |
| 12draft | 4 | Tsukamoto, Toshiki (1761) | Lost 0-1 | -161611 |
| 13draft | 11 | Yamano, Yuji (1611) | Lost 1-2 | -181593 |
| top | average opponent: 1629record: 6-4 | new rating: 1593 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 16 | Choyama, Shuryu (1500) | Lost 0-2 | -181487 |
| 4extended | 165 | Shimizu, Masaaki (1518) | Won 2-0 | +181505 |
| 5extended | 72 | Mizobuchi, Kaoru (1535) | Won 2-0 | +191524 |
| 6extended | 28 | Takizawa, Masayoshi (1554) | Won 2-1 | +181542 |
| 7extended | 30 | Ishida, Itaru (1555) | Won 2-0 | +191561 |
| 8extended | 14 | Hidaka, Ayumi (1548) | Draw 1-1 | -11560 |
| 9extended | 17 | Otani, Akiyuki (1589) | Won 2-1 | +191579 |
| 10extended | 14 | Noda, Koji (1615) | Won 2-0 | +191598 |
| 11extended | 8 | Nakamura, Shuhei (1593) | Lost 0-2 | -181580 |
| 12extended | 13 | Fuller, Ryan (1928) | Lost 0-2 | -121568 |
| 13extended | 18 | Yamasaki, Yudai (1573) | Lost 1-2 | -181550 |
| 14extended | 21 | Kageyama, Kiyotomo (1544) | Draw 1-1 | 01550 |
| top | average opponent: 1588record: 6-4-2 | new rating: 1550 | ||
| Pro Tour Rome 1998 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 32 | Solaja, Ivan (1500) | Lost 0-0 | -181482 |
| 2extended | 96 | Parker, Todd (1483) | Won 0-0 | +181500 |
| 3extended | 72 | Cleemann, Jonas (1502) | Won 0-0 | +181518 |
| 4extended | 26 | O'Mahoney-Schwartz, Daniel (1518) | Won 0-0 | +181536 |
| 5extended | 36 | Curtis, Lee (1540) | Lost 0-0 | -181518 |
| 6extended | 54 | Senyuz, Aras (1517) | Won 0-0 | +181536 |
| 7extended | 36 | Lo Moro, Raffaele (1555) | Won 0-0 | +181554 |
| 8extended | 17 | Konstanczer, Andre (1685) | Lost 0-0 | -151539 |
| 9extended | 29 | Nishioka, Andrew (1581) | Lost 0-0 | -171522 |
| 10extended | 36 | Dobson, Tony (1567) | Lost 0-0 | -181504 |
| 11extended | 43 | Williams, David A (1446) | Won 0-0 | +171521 |
| 12extended | 36 | Marsh, Warren (1526) | Lost 0-0 | -181503 |
| 13extended | 41 | Kroger, Peer (1584) | Lost 0-0 | -161487 |
| 14extended | 43 | Aroutiounian, Jean (1486) | Won 0-0 | +181505 |
| top | average opponent: 1535record: 7-7 | new rating: 1505 | ||