Itou, Ryouta
Current rating: 1308
Record: 21-39-2
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1307 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Sekiya, Haruki (1500) | Lost 0-2 | -141293 |
| 2sealed | 671 | Nagase, Hirofumi (1332) | Won 2-0 | +191312 |
| 3sealed | 559 | Ookura, Takahiro (1458) | Lost 0-2 | -161296 |
| 4sealed | 803 | Maeda, Yasuyuki (1542) | Won 2-0 | +231319 |
| 5sealed | 858 | Wu, Songwei (1751) | Lost 0-2 | -111308 |
| top | average opponent: 1517record: 2-3 | new rating: 1308 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1327 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 452 | Toyoda, Takahiro (1500) | Lost 1-2 | -151312 |
| 2standard | 644 | Gibralta, Thierry (1516) | Lost 0-2 | -141298 |
| 3standard | 1236 | Nishikawa, Yukihide (1511) | Lost 1-2 | -141284 |
| 4standard | 1261 | Mikami, Wataru (1399) | Won 2-0 | +201304 |
| 5standard | 1227 | Motoki, Tsutomu (1462) | Won 2-0 | +201324 |
| 6standard | 923 | Shimizu, Takafumi (1373) | Lost 1-2 | -171307 |
| top | average opponent: 1460record: 2-4 | new rating: 1307 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1343 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 571 | Kawawaki, Masataka (1464) | Won 2-0 | +201363 |
| 2legacy | 427 | Suzuki, Yusuke (1547) | Won 2-0 | +221385 |
| 3legacy | 51 | Sugimoto, Takaaki (1483) | Lost 0-2 | -161369 |
| 4legacy | 612 | Kitagawa, Yuta (1428) | Lost 1-2 | -171352 |
| 5legacy | 664 | Eto, Kai (1546) | Lost 0-2 | -151337 |
| 6legacy | 877 | Hayashi, Shinsuke (1789) | Lost 0-2 | -101327 |
| top | average opponent: 1543record: 2-4 | new rating: 1327 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 441 | Kawakami, Kazumitsu (1500) | Draw 1-1 | +21375 |
| 2standard | 778 | Sakano, Hiroki (1500) | Lost 1-2 | -161359 |
| 3standard | 1395 | Wada, Yuusaku (1477) | Lost 0-2 | -161343 |
| top | average opponent: 1492record: 0-2-1 | new rating: 1343 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1380 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 14 | Uemonsa, Takashi (1429) | Lost 0-2 | -171363 |
| 2legacy | 341 | Taya, Hironobu (1482) | Lost 0-2 | -161347 |
| 3legacy | 453 | Kishimoto, Takafumi (1464) | Won 2-0 | +201367 |
| 4legacy | 363 | Osako, Masaki (1477) | Lost 0-2 | -161351 |
| 5legacy | 391 | Tanaka, Makoto (1290) | Lost 1-2 | -191332 |
| 6legacy | 362 | Kawamura, Naoki (1377) | Won 1-0 | +191351 |
| 7legacy | 296 | Inoue, Seiya (1445) | Won 2-0 | +201371 |
| 8legacy | 233 | Hino, Takanari (1480) | Draw 1-1 | +21373 |
| top | average opponent: 1430record: 3-4-1 | new rating: 1373 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Itazu, Yoshihisa (1466) | Lost 0-2 | -161371 |
| 2sealed | 326 | Sekine, Naoto (1627) | Lost 0-2 | -141357 |
| 3sealed | 378 | Ozaki, Kengo (1463) | Won 2-0 | +201377 |
| 4sealed | 327 | Kawamae, Toshiyuki (1415) | Won 2-0 | +191396 |
| 5sealed | 207 | Masaoka, Satoru (1500) | Lost 0-2 | -161380 |
| top | average opponent: 1494record: 2-3 | new rating: 1380 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 866 | Sakuma, Toshimitsu (1672) | Lost 1-2 | -131380 |
| 2sealed | 971 | Matsuzaki, Eiji (1482) | Won 2-1 | +201400 |
| 3sealed | 994 | Miyakawa, Ayumu (1486) | Lost 1-2 | -171383 |
| 4sealed | 1058 | Sunaga, Masahiro (1488) | Won 2-0 | +201403 |
| 5sealed | 943 | Ishiwada, Hiroyuki (1469) | Won 2-0 | +191422 |
| 6sealed | 900 | Kimura, Atsushi (1450) | Lost 1-2 | -171405 |
| 7sealed | 894 | Akama, Kazuya (1433) | Lost 0-2 | -181387 |
| top | average opponent: 1497record: 3-4 | new rating: 1387 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1360 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 403 | Yamato M., (1500) | Won 2-1 | +201380 |
| 2modern | 176 | Moriyasu, Takaaki (1518) | Won 2-1 | +211401 |
| 3modern | 23 | Chijimi, Keiichi (1725) | Lost 0-2 | -121389 |
| 4modern | 408 | Hirose, Daichi (1426) | Won 2-1 | +181407 |
| 5modern | 170 | Ichikawa, Norikazu (1610) | Lost 1-2 | -141393 |
| top | average opponent: 1556record: 3-2 | new rating: 1393 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 63 | Sumida, Yasuhiko (1500) | Won 2-0 | +201387 |
| 2block | 217 | Takeda, Shinnosuke (1518) | Lost 0-2 | -151372 |
| 3block | 138 | Takeda, Hiroki (1562) | Lost 0-2 | -151357 |
| 4block | 319 | Kadowaki, Tatsuya (1483) | Won 2-0 | +201377 |
| 5block | 287 | Hosoda, Shinya (1412) | Lost 1-2 | -171360 |
| top | average opponent: 1495record: 2-3 | new rating: 1360 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 148 | Kimura, Shigeki (1463) | Won 2-1 | +201413 |
| 2standard | 44 | Hirayama, Daisuke (1533) | Lost 0-2 | -161397 |
| 3standard | 243 | Takine, Kenji (1517) | Lost 1-2 | -161381 |
| 4standard | 352 | Hashimoto, Masafumi (1587) | Lost 0-2 | -141367 |
| top | average opponent: 1525record: 1-3 | new rating: 1367 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Samiso, Yutaka (1500) | Lost 1-2 | -171410 |
| 2sealed | 117 | Song, Hee Chul (1482) | Won 2-1 | +201430 |
| 3sealed | 69 | Hishida, Akinori (1583) | Lost 0-2 | -161414 |
| 4sealed | 140 | Tanabe, Kazuya (1249) | Lost 0-2 | -211393 |
| top | average opponent: 1453record: 1-3 | new rating: 1393 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Kokubu, Shintarou (1500) | Lost 1-2 | -181482 |
| 2standard | 271 | Sasaya, Seisaku (1464) | Lost 0-2 | -181464 |
| 3standard | 328 | Okano, Hiroki (1430) | Lost 1-2 | -191445 |
| 4standard | 379 | Tanaka, Yasunori (1443) | Lost 0-2 | -181427 |
| top | average opponent: 1459record: 0-4 | new rating: 1427 | ||