Itou, Masahiro1014
Current rating: 1522
Record: 36-54-3
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 80 | Tsujimoto, Shingo (1527) | Won 2-0 | +201474 |
| 3pioneer | 186 | Sasaki, Ken (1557) | Won 2-0 | +191493 |
| 4pioneer | 18 | Masuda, Tomohito (1579) | Won 2-0 | +201513 |
| 5pioneer | 51 | Ishizuki, Takuya (1601) | Lost 1-2 | -171496 |
| 6pioneer | 217 | Oda, Ryota (1555) | Won 2-1 | +191515 |
| 7pioneer | 96 | Matsumura, Asuka (1556) | Lost 1-2 | -171498 |
| 8pioneer | 132 | Takagi, Takayuki (1817) | Won 2-1 | +241522 |
| 9pioneer | 164 | Shiotani, Keiichiro (1615) | Lost 0-2 | -171505 |
| 10pioneer | 157 | Oku, Daisaku (1565) | Won 2-1 | +201525 |
| 11pioneer | 119 | Takeda, Noriaki (1468) | Won 2-1 | +171542 |
| 12pioneer | 61 | Fujikura, Akinori (1714) | Won 2-0 | +211563 |
| 13pioneer | 45 | Shiozaki, Toshinori (1908) | Lost 0-2 | -121551 |
| 14pioneer | 90 | Iwamoto, Shintaro (1612) | Lost 0-2 | -171534 |
| 15pioneer | 84 | Noine, Kazuhiro (1877) | Lost 0-2 | -121522 |
| top | average opponent: 1639record: 8-6 | new rating: 1522 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1377 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 193 | Nishikawa, Ryota (1599) | Draw 1-1 | +41381 |
| 3standard | 451 | Li, Zongze (1519) | Won 2-1 | +201401 |
| 4standard | 234 | Shiba, Yoshimasa (1544) | Won 2-0 | +211422 |
| 5standard | 107 | Horie, Tooru (1727) | Won 2-0 | +231445 |
| 6standard | 65 | Ohno, Isao (1629) | Lost 1-2 | -141431 |
| 7standard | 169 | Ogawa, Ryou (1635) | Won 2-1 | +211452 |
| 8standard | 88 | Tsubira, Yuuya (1572) | Draw 1-1 | +21454 |
| top | average opponent: 1604record: 4-1-2 | new rating: 1454 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1336 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 153 | Kimura, Ryou (1581) | Lost 0-2 | -141322 |
| 3sealed | 892 | Hong, Liang (1462) | Won 2-1 | +211343 |
| 4sealed | 616 | Hasegawa, Shinpei (1345) | Won 2-0 | +181361 |
| 5sealed | 155 | Noge, Hayata (1626) | Won 2-1 | +231384 |
| 6sealed | 163 | Fujitani, Masahiro (1564) | Won 2-0 | +211405 |
| 7sealed | 75 | Shiohata, Ryosuke (1579) | Lost 1-2 | -151390 |
| 8sealed | 336 | Ohtsuka, Fukuo (1651) | Lost 0-2 | -131377 |
| top | average opponent: 1544record: 4-3 | new rating: 1377 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1255 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 157 | Cho, Kou (1769) | Won 2-0 | +271282 |
| 4standard | 225 | Uzawa, Yuichi (1699) | Lost 1-2 | -111271 |
| 5standard | 230 | Endo, Akiteru (1516) | Lost 1-2 | -141257 |
| 6standard | 637 | Inage, Naoto (1517) | Won 2-0 | +231280 |
| 7standard | 504 | Naono, Shuichi (1444) | Won 2-1 | +211301 |
| 8standard | 366 | Takeuchi, Ataru (1683) | Won 2-0 | +241325 |
| 9standard | 279 | Noguchi, Takeshi (1599) | Won 2-0 | +231348 |
| 10standard | 179 | Shibata, Masataka (1527) | Lost 1-2 | -151333 |
| 11standard | 271 | Toma, Hiroto (1623) | Lost 0-2 | -121321 |
| 12standard | 367 | Maruyama, Takahiro (1529) | Lost 0-2 | -151306 |
| 13standard | 318 | Umman, Masahiro (1508) | Won 2-1 | +221328 |
| 14standard | 252 | Takeuchi, Shouhei (1428) | Won 2-0 | +201348 |
| 15standard | 190 | Takenouchi, Tetsuya (1703) | Lost 1-2 | -121336 |
| top | average opponent: 1580record: 7-6 | new rating: 1336 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1258 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 290 | Nishi, Yuutarou (1535) | Won 2-1 | +231281 |
| 4sealed | 62 | Ichikawa, Norikazu (1627) | Lost 0-2 | -121269 |
| 5sealed | 183 | Kimura, Yuito (1581) | Won 2-1 | +241293 |
| 6sealed | 229 | Taniguchi, Hironobu (1552) | Lost 0-2 | -141279 |
| 7sealed | 511 | Ichihara, Yuya (1687) | Lost 1-2 | -111268 |
| 8sealed | 472 | Fujimoto, Ko (1528) | Lost 1-2 | -131255 |
| top | average opponent: 1585record: 2-4 | new rating: 1255 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1198 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 93 | Nonaka, Harufumi (1536) | Won 2-0 | +241222 |
| 4sealed | 61 | Kamizono, Naoki (1685) | Won 2-0 | +261248 |
| 5sealed | 34 | Mizuki, Shota (1605) | Lost 1-2 | -121236 |
| 6sealed | 131 | Kameda, Azuchi (1547) | Won 2-1 | +241260 |
| 7sealed | 71 | Suzuki, Atsushi (1478) | Lost 0-2 | -141246 |
| 8sealed | 163 | Nakamichi, Yuko (1544) | Won 2-0 | +231269 |
| 9sealed | 104 | Shiba, Naoto (1681) | Lost 1-2 | -111258 |
| top | average opponent: 1582record: 4-3 | new rating: 1258 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1198 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 672 | Nagae, Nobuyasu (1559) | Won 2-1 | +241222 |
| 4legacy | 549 | Tholance, Nicolas (1462) | Lost 1-2 | -141208 |
| 5legacy | 572 | Hamada, Teppei (1483) | Won 2-1 | +231231 |
| 6legacy | 591 | Fujii, Kohei (1617) | Lost 0-2 | -111220 |
| 7legacy | 626 | Campusano, Eric (1711) | Lost 1-2 | -101210 |
| 8legacy | 659 | Matsumoto, Takafumi (1567) | Lost 0-2 | -121198 |
| top | average opponent: 1566record: 2-4 | new rating: 1198 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1251 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 34 | Kanda, Aoi (1537) | Lost 0-2 | -131238 |
| 4sealed | 139 | Iwamoto, Kazuki (1517) | Won 2-1 | +231261 |
| 5sealed | 172 | Kawachi, Yusuke (1657) | Lost 0-2 | -111250 |
| 6sealed | 171 | Matsuyama, Ryousuke (1593) | Lost 1-2 | -121238 |
| 7sealed | 261 | Goshima, Akito (1503) | Lost 1-2 | -141224 |
| 8sealed | 234 | Wada, Yousuke (1481) | Lost 0-2 | -131211 |
| 9sealed | 186 | Hisada, Ryouta (1463) | Lost 1-2 | -131198 |
| top | average opponent: 1536record: 1-6 | new rating: 1198 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1320 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 137 | Ushio, Atsushi (1741) | Lost 1-2 | -111309 |
| 3modern | 319 | Tamoto, Kei (1408) | Lost 0-2 | -161293 |
| 4modern | 389 | Itou, Hayato6706 (1486) | Draw 1-1 | +31296 |
| 5modern | 442 | Yoshimura, Motoki (1217) | Lost 0-2 | -191277 |
| 6modern | 463 | Ozturk, Deren (1464) | Lost 0-2 | -151262 |
| 7modern | 407 | Hanaoka, Hiroaki (1384) | Won 2-1 | +201282 |
| 8modern | 321 | Samejima, Ippei (1368) | Lost 0-2 | -161266 |
| 9modern | 287 | Yamada, Yuuki (1428) | Lost 1-2 | -151251 |
| top | average opponent: 1437record: 1-6-1 | new rating: 1251 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1358 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 516 | Onodera, Yuuji (1504) | Lost 1-2 | -151343 |
| 5sealed | 644 | Suzuki, Kei (1603) | Lost 0-2 | -141329 |
| 6sealed | 689 | Takahashi, Eiji (1484) | Lost 1-2 | -151314 |
| 7sealed | 701 | Saegusa, Nobuyuki (1474) | Lost 1-2 | -151299 |
| 8sealed | 690 | Yuki, Ryosuke (1442) | Won 2-1 | +211320 |
| top | average opponent: 1501record: 1-4 | new rating: 1320 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 631 | Narisawa, Takuya (1506) | Won 2-1 | +191431 |
| 3standard | 617 | Oosaki, Masakazu (1477) | Lost 1-2 | -171414 |
| 4standard | 731 | Hiramatsu, Mamoru (1742) | Lost 0-2 | -121402 |
| 5standard | 772 | Hiromatsu, Daiki (1503) | Lost 1-2 | -161386 |
| 6standard | 779 | Tsuboyama, Shuta (1404) | Won 2-1 | +181404 |
| 7standard | 714 | Miyazaki, Rintarou (1537) | Lost 1-2 | -161388 |
| 8standard | 729 | Koike, Takumi (1483) | Lost 0-2 | -161372 |
| 9standard | 820 | Ebihara, Hirotaka (1594) | Lost 1-2 | -141358 |
| top | average opponent: 1531record: 2-6 | new rating: 1358 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 674 | Yamaoka, Nobuyuki (1522) | Lost 1-2 | -181482 |
| 4sealed | 980 | Amayasu, Kazunori (1429) | Lost 1-2 | -191463 |
| 5sealed | 986 | Nakazawa, Masayuki (1504) | Lost 0-2 | -171446 |
| 6sealed | 953 | Hatanaka, Yuta (1483) | Lost 0-2 | -171429 |
| 7sealed | 930 | Kento, Hatao (1466) | Lost 0-2 | -171412 |
| top | average opponent: 1481record: 0-5 | new rating: 1412 | ||