Tashima, Chihiro
Current rating: 1612
Record: 69-64-1
- 2003
- 2004
- 2008
- 2009
- 2010
- 2011
- 2012
- 2013
- 2014
- 2016
| Grand Prix Beijing 2016 (SOI limited) | starting rating: 1620 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 56 | Zhang, Xinyu (1518) | Won 2-1 | +161636 |
| 3sealed | 146 | Nitsu, Shunsuke (1746) | Lost 0-2 | -161620 |
| 4sealed | 249 | Qian, Jianhua (1452) | Lost 0-2 | -211599 |
| 5sealed | 273 | Peng, Jianteng (1499) | Won 2-0 | +171616 |
| 6sealed | 238 | Imai, Ayato (1733) | Lost 1-2 | -161600 |
| 7sealed | 309 | Liu, Shang Ying (1502) | Lost 0-2 | -201580 |
| 8sealed | 337 | Chen, Zexin (1469) | Won 2-0 | +161596 |
| 9sealed | 241 | Chen, Sizhe (1509) | Won 2-0 | +161612 |
| top | average opponent: 1553record: 4-4 | new rating: 1612 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1666 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 183 | Yuki, Shimmura (1519) | Lost 1-2 | -201646 |
| 3modern | 414 | Kuroda, Masashiro (1851) | Won 2-0 | +211667 |
| 4modern | 289 | Takahira, Takashi (1519) | Lost 0-2 | -201647 |
| 5modern | 357 | Akaike, Yo (1569) | Lost 0-2 | -201627 |
| 6modern | 432 | Ohori, Akihito (1417) | Won 2-1 | +141641 |
| 7modern | 308 | Kobayashi, Souichi (1464) | Lost 0-2 | -211620 |
| top | average opponent: 1556record: 2-4 | new rating: 1620 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 7 | Suzuki, Nobuyoshi (1777) | Lost 1-2 | -161629 |
| 3sealed | 278 | Izu, Yuuya (1501) | Lost 1-2 | -201609 |
| 4sealed | 371 | Iwaki, Tetsuya (1381) | Won 2-0 | +141623 |
| 5sealed | 241 | Saitou, Takanori (1497) | Won 2-0 | +161639 |
| 6sealed | 139 | Ikuta, Kazuya (1507) | Lost 1-2 | -211618 |
| 7sealed | 197 | Shimizu, Takafumi (1478) | Won 2-0 | +161634 |
| 8sealed | 183 | Kato, Hiroki (1519) | Won 2-0 | +161650 |
| 9sealed | 113 | Kurihara, Tomo (1580) | Won 2-1 | +161666 |
| top | average opponent: 1530record: 5-3 | new rating: 1666 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1635 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 124 | Juumonji, Ryou (1740) | Lost 0-2 | -161619 |
| 4standard | 171 | Fusegi, Takanori (1500) | Won 2-1 | +161635 |
| 5standard | 59 | Kawasaki, Takeshi (1505) | Won 2-0 | +151650 |
| 6standard | 45 | Okamura, Ryoma (1549) | Lost 0-2 | -191631 |
| 7standard | 94 | Hirose, Yuuki (1662) | Lost 0-2 | -181613 |
| 8standard | 147 | Ishino, Takuya2183 (1505) | Won 2-0 | +161629 |
| 9standard | 287 | Ishino, Takuya5590 (1504) | Won 2-0 | +161645 |
| top | average opponent: 1567record: 4-3 | new rating: 1645 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 100 | Sugisaki, Shouhei (1499) | Won 2-0 | +161626 |
| 3sealed | 151 | Takeda, Daisuke (1515) | Won 2-1 | +161642 |
| 4sealed | 24 | Sato, Masayuki (1553) | Lost 0-2 | -201622 |
| 5sealed | 129 | Katou, Yoshitugu (1575) | Won 2-1 | +171639 |
| 6sealed | 82 | Nakajima, Hiroki 676 (1552) | Lost 1-2 | -191620 |
| 7sealed | 214 | Hamada, Etsuo (1537) | Won 2-1 | +161636 |
| 8sealed | 224 | Satou, Yuuya (1509) | Lost 0-2 | -201616 |
| 9sealed | 323 | Ebihara, Hirotaka (1671) | Won 2-0 | +191635 |
| top | average opponent: 1551record: 5-3 | new rating: 1635 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1644 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 263 | Nakamura, Kousuke (1409) | Lost 0-2 | -221622 |
| 3standard | 613 | Morimoto, Shinichi (1500) | Lost 1-2 | -201602 |
| 4standard | 713 | Ushio, Atsushi (1682) | Lost 1-2 | -171585 |
| 5standard | 690 | Nakamura, Takuya (1428) | Won 2-0 | +161601 |
| 6standard | 535 | Mino, Tetsuya (1483) | Won 2-1 | +161617 |
| 7standard | 400 | Yuge, Tatsurou (1483) | Won 2-1 | +151632 |
| 8standard | 326 | Choi, Kiho (1405) | Lost 1-2 | -221610 |
| top | average opponent: 1484record: 3-4 | new rating: 1610 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1625 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 113 | Yabuta, Junichi (1652) | Won 2-1 | +181643 |
| 4sealed | 86 | Tezuka, Yuuki (1499) | Won 2-1 | +161659 |
| 5sealed | 63 | Wada, Hiroya (1601) | Lost 0-2 | -191640 |
| 6sealed | 122 | Kadooka, Toshiyuki (1876) | Won 2-1 | +221662 |
| 7sealed | 46 | Morofuji, Takuma (1707) | Lost 0-2 | -171645 |
| 8sealed | 87 | Tanimoto, Yusaku (1568) | Won 2-0 | +161661 |
| 9sealed | 43 | Omori, Tomoaki (1731) | Lost 0-2 | -171644 |
| top | average opponent: 1662record: 4-3 | new rating: 1644 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1639 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 34 | Yagi, Tetsuhiro (1520) | Won 2-1 | +161655 |
| 3standard | 75 | Ishiguro, Satoshi (1576) | Lost 1-2 | -191636 |
| 4standard | 172 | Doi, Fumiaki (1609) | Lost 0-2 | -191617 |
| 5standard | 202 | Okada, Yoshikazu (1438) | Lost 0-2 | -211596 |
| 6standard | 277 | Hamamoto, Yohei (1483) | Won 2-1 | +161612 |
| 7standard | 209 | Takahashi, Ryouhei (1496) | Lost 1-2 | -201592 |
| 8standard | 182 | Maki, Toshiya (1501) | Won 2-1 | +161608 |
| 9standard | 148 | Takeda, Kazuki (1536) | Won 2-1 | +171625 |
| top | average opponent: 1520record: 4-4 | new rating: 1625 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 11 | Hidaka, Ayumi (1538) | Lost 1-2 | -181544 |
| 3extended | 203 | Nakano, Tatsuhito (1560) | Won 2-0 | +181562 |
| 4extended | 135 | Hamada, Shingo (1518) | Won 2-0 | +171579 |
| 5extended | 95 | Kusadani, Takehiko (1614) | Won 2-0 | +191598 |
| 6extended | 82 | Senba, Kotaro (1676) | Won 2-1 | +191617 |
| 7extended | 37 | S., Ken (1518) | Lost 1-2 | -191598 |
| 8extended | 66 | Satou, Takahisa (1553) | Won 2-1 | +171615 |
| 9extended | 42 | Nakamura, Hajime (1797) | Won 2-0 | +211636 |
| 10extended | 37 | Hirayama, Hideyuki (1609) | Won 2-0 | +181654 |
| 11extended | 7 | Kuze, Shouta (1769) | Lost 1-2 | -161638 |
| 12extended | 2 | Kadooka, Toshiyuki (1747) | Lost 0-2 | -161622 |
| 13extended | 31 | Yuda, Chikara (1598) | Won 2-0 | +171639 |
| 14extended | 7 | Hosokawa, Yuya (1699) | Lost 0-2 | -171622 |
| 15extended | 4 | Abe, Motoki (1556) | Won 2-1 | +171639 |
| top | average opponent: 1625record: 9-5 | new rating: 1639 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 182 | Hotta, Daisuke (1500) | Won 2-1 | +181509 |
| 2standard | 190 | Tsujimoto, Hideki (1621) | Won 2-0 | +201529 |
| 3standard | 4 | Date, Hiroshi (1616) | Won 2-0 | +201549 |
| 4standard | 37 | Ootsuka, Koutarou (2007) | Lost 0-2 | -101539 |
| 5standard | 76 | Tomii, Tsubasa (1816) | Lost 0-2 | -131526 |
| 6standard | 250 | Kitagawa, Norio (1546) | Lost 1-2 | -181508 |
| 7standard | 223 | Nakayama, Yuuki (1442) | Won 2-0 | +171525 |
| 8standard | 186 | Ishida, Yuuichi (1606) | Won 2-0 | +191544 |
| 9standard | 136 | Onodera, Yuuji (1538) | Won 2-1 | +181562 |
| top | average opponent: 1632record: 6-3 | new rating: 1562 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 97 | Nakajima, Chikara (1785) | Won 2-1 | +231517 |
| 5extended | 25 | Chijimi, Keiichi (1591) | Lost 1-2 | -161501 |
| 6extended | 114 | Arakawa, Yasuaki (1587) | Lost 0-2 | -171484 |
| 7extended | 97 | Mihara, Makihito (1942) | Won 2-1 | +261510 |
| 8extended | 210 | Ishimura, Shintaro (1914) | Won 2-0 | +251535 |
| 9extended | 46 | Kawai, Hiroki (1577) | Won 2-0 | +191554 |
| 10extended | 21 | Ikeda, Shun (1558) | Lost 1-2 | -181536 |
| 11extended | 50 | Yasooka, Shota (1906) | Lost 0-2 | -121524 |
| 12extended | 57 | Chiba, Ryou (1524) | Lost 1-2 | -181506 |
| 13extended | 60 | Fukuta, Shingo (1675) | Lost 0-2 | -151491 |
| top | average opponent: 1706record: 4-6 | new rating: 1491 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 98 | Paine, Chris (1500) | Won 2-0 | +181507 |
| 2sealed | 53 | Miura, Tadayuki (1466) | Won 2-0 | +171524 |
| 3sealed | 10 | Omori, Tomoaki (1771) | Won 2-1 | +231547 |
| 4sealed | 47 | Okabayashi, Masanao (1620) | Lost 1-2 | -171530 |
| 5sealed | 72 | Kadono, Takayuki (1529) | Lost 1-2 | -181512 |
| 6sealed | 144 | Ogawa, Hikaru (1516) | Lost 0-2 | -181494 |
| top | average opponent: 1567record: 3-3 | new rating: 1494 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Iijima, Osamu (1500) | Won 2-0 | +191488 |
| 2sealed | 177 | Tezuka, Yuuki (1472) | Won 2-0 | +181506 |
| 3sealed | 47 | Nakada, Naoki (1633) | Lost 1-2 | -161490 |
| 4sealed | 180 | Nagai, Mamoru (1519) | Won 2-1 | +181508 |
| 5sealed | 113 | Hirokawa, Tatsuya (1551) | Lost 1-2 | -171491 |
| 6sealed | 179 | Hanawa, Atsushi (1399) | Lost 0-2 | -191472 |
| 7sealed | 147 | Hanyu, Yusuke (1466) | Won 2-0 | +171489 |
| 8sealed | 121 | Nagami, Yuuichi (1376) | Won 2-0 | +161505 |
| 9sealed | 84 | Fujimoto, Yosuke (1584) | Lost 1-2 | -161489 |
| top | average opponent: 1500record: 5-4 | new rating: 1489 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 41 | Yoshida, Hiroshi (1753) | Won 2-0 | +231487 |
| 5extended | 22 | Nakano, Yoshitaka (2059) | Lost 1-2 | -81479 |
| 6extended | 36 | Kikuchi, Yuuji (1707) | Lost 1-2 | -141465 |
| 7extended | 100 | Matsugami, Shigeo (1572) | Won 2-1 | +201485 |
| 8extended | 85 | Shimada, Hiroya (1641) | Lost 0-2 | -161469 |
| top | average opponent: 1746record: 2-3 | new rating: 1469 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Yasuda, Seita (1500) | Lost 0-0 | -171414 |
| 2sealed | 228 | Okamoto, Masahiro (1586) | Won 2-1 | +221436 |
| 3sealed | 117 | Higashimura, Kazuya (1448) | Won 2-0 | +181454 |
| 4sealed | 144 | Nakatani, Hiroshi (1631) | Won 2-0 | +211475 |
| 5sealed | 87 | Kadooka, Toshiyuki (1714) | Lost 0-2 | -141461 |
| 6sealed | 208 | Tokuyama, Kouta (1541) | Lost 0-2 | -161445 |
| 7sealed | 81 | Miwa, Tatsuya (1515) | Won 2-1 | +191464 |
| top | average opponent: 1562record: 4-3 | new rating: 1464 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 86 | Kishishita, Kunihiko (1433) | Won 2-0 | +181480 |
| 3extended | 63 | Nose, Koji (1571) | Won 2-0 | +201500 |
| 4extended | 19 | Niwa, Takashi (1550) | Draw 1-1 | 01500 |
| 5extended | 28 | Furukawa, Yuuki (1538) | Lost 0-2 | -171483 |
| 6extended | 61 | Yoshida, Taiki (1538) | Lost 0-2 | -171466 |
| 7extended | 89 | Maruyama, Hiromi (1476) | Lost 0-2 | -181448 |
| 8extended | 85 | Noyama, Kouji (1499) | Lost 0-2 | -171431 |
| top | average opponent: 1515record: 2-4-1 | new rating: 1431 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 50 | Nakano, Shin (1451) | Won 2-0 | +171517 |
| 2sealed | 92 | Doi, Koji (1546) | Lost 0-2 | -171500 |
| 3sealed | 183 | Yaoita, Akihiro (1488) | Lost 1-2 | -191481 |
| 4sealed | 209 | Kondo, Takahito (1450) | Lost 0-2 | -181463 |
| 5sealed | 233 | Harada, Shuhei (1464) | Lost 0-2 | -181445 |
| 6sealed | 212 | Yoshimura, Motoki (1418) | Lost 0-2 | -191426 |
| 7sealed | 181 | Nakayama, Takashi (1425) | Won 2-0 | +181444 |
| 8sealed | 123 | Nakagawa, Hiroki (1447) | Won 2-1 | +181462 |
| top | average opponent: 1461record: 3-5 | new rating: 1462 | ||