Tsutai, Koutarou
Current rating: 1376
Record: 38-63-1
Grand Prix Yokohama 2013Grand Prix Shizuoka 2013Grand Prix Nagoya 2014Grand Prix Kobe 2014Grand Prix Shizuoka 2015Grand Prix Chiba 2015Grand Prix Shizuoka 2017Grand Prix Kobe 2017Grand Prix Kyoto 2017Grand Prix Shizuoka 2018 (standard)Grand Prix Kyoto 2019Grand Prix Yokohama 2019Grand Prix Nagoya 2019Grand Prix Nagoya 2020
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 219 | Choi, Suouk (1592) | Won 2-0 | +211400 |
| 3pioneer | 207 | Okumura, Takaaki (1521) | Lost 1-2 | -151385 |
| 4pioneer | 512 | Ochi, Takahiro (1494) | Won 2-0 | +201405 |
| 5pioneer | 230 | Honda, Atsuo (1628) | Lost 0-2 | -141391 |
| 6pioneer | 411 | Takamura, Kazuki (1569) | Lost 0-2 | -151376 |
| top | average opponent: 1561record: 2-3 | new rating: 1376 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1366 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 79 | Manera, Nino (1496) | Lost 0-2 | -151351 |
| 4standard | 256 | Oshiro, Marei (1488) | Lost 1-2 | -161335 |
| 5standard | 612 | Yamada, Satoshi (1470) | Won 2-0 | +211356 |
| 6standard | 380 | Fujii, Kohei (1709) | Lost 0-2 | -121344 |
| 7standard | 512 | Hishida, Tomoya (1283) | Won 2-0 | +171361 |
| 8standard | 240 | Morishita, Yoshihisa (1359) | Won 2-0 | +181379 |
| top | average opponent: 1468record: 3-3 | new rating: 1379 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1214 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 181 | Ng, Don (1472) | Won 2-1 | +221236 |
| 3modern | 331 | Mitsuduka, Makoto (1537) | Won 2-1 | +241260 |
| 4modern | 158 | Urasawa, Taiji (1739) | Won 2-1 | +261286 |
| 5modern | 55 | Toriumi, Takashi (1524) | Won 2-1 | +221308 |
| 6modern | 21 | Fujita, Tsuyoshi (1932) | Won 2-1 | +281336 |
| 7modern | 33 | Suzuki, Takahito (1651) | Lost 1-2 | -121324 |
| 8modern | 27 | Li, Youchen (1539) | Lost 1-2 | -141310 |
| 9modern | 112 | Yamasaki, Yudai (1723) | Won 2-0 | +251335 |
| 10modern | 104 | Kim, Minsu (1536) | Won 2-1 | +211356 |
| 11modern | 60 | Takeshita, Toru (1771) | Lost 1-2 | -111345 |
| 12modern | 78 | Karwoski, Andy (1593) | Lost 1-2 | -131332 |
| 13modern | 121 | Hayashi, Takatomo (1723) | Won 2-1 | +251357 |
| 14modern | 88 | Tsushima, Kiyoto (1579) | Won 2-1 | +221379 |
| 15modern | 62 | Kimura, Kazuki (1698) | Lost 1-2 | -131366 |
| top | average opponent: 1644record: 9-5 | new rating: 1366 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1258 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 417 | Morishima, Noriaki (1500) | Lost 0-2 | -131245 |
| 2standard | 764 | Imagawa, Kouki (1416) | Won 2-0 | +211266 |
| 3standard | 686 | Naono, Shuichi (1395) | Lost 1-2 | -161250 |
| 4standard | 797 | Kajiwara, Tomoki (1417) | Lost 0-2 | -151235 |
| 5standard | 873 | Takashima, Tatsuya (1435) | Won 2-1 | +221257 |
| 6standard | 741 | Uechi, Shintaro (1564) | Lost 0-2 | -131244 |
| 7standard | 631 | Hattori, Kazuki (1515) | Lost 1-2 | -131231 |
| 8standard | 579 | Nakazawa, Koutarou (1277) | Lost 1-2 | -171214 |
| top | average opponent: 1440record: 2-6 | new rating: 1214 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1283 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 574 | Tang, Yu Hsiang (1590) | Draw 1-1 | +61289 |
| 2standard | 655 | Shimizu, Takafumi (1401) | Won 2-1 | +201309 |
| 3standard | 628 | Kusakabe, Yuuga (1517) | Lost 1-2 | -141295 |
| 4standard | 801 | Yamaguchi, Naohiro (1383) | Won 2-0 | +191314 |
| 5standard | 614 | Nanjo, Masashi (1790) | Lost 0-2 | -101304 |
| 6standard | 753 | Matsumoto, Tomohiro (1604) | Lost 0-2 | -121292 |
| 7standard | 749 | Hieda, Yosuke (1385) | Lost 1-2 | -171275 |
| 8standard | 708 | Inami, Yuuki (1333) | Lost 0-2 | -171258 |
| top | average opponent: 1500record: 2-5-1 | new rating: 1258 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1220 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Matsushita, Takayuki (1550) | Won 2-0 | +241244 |
| 2sealed | 438 | Tanaka, Tomoya (1515) | Won 2-1 | +231267 |
| 3sealed | 213 | Mochizuki, Yota (1538) | Lost 0-2 | -131254 |
| 4sealed | 527 | Ono, Makoto (1534) | Won 2-1 | +221276 |
| 5sealed | 335 | Kitayama, Masaya (1913) | Lost 1-2 | -71269 |
| 6sealed | 587 | Chiyonishio, Iori (1513) | Won 2-0 | +221291 |
| 7sealed | 327 | Kobayashi, Yuki9366 (1517) | Won 2-1 | +221313 |
| 8sealed | 304 | Kato, Masaaki (1564) | Lost 0-2 | -131300 |
| 9sealed | 507 | Fukaya, Yuta (1396) | Lost 1-2 | -171283 |
| top | average opponent: 1560record: 5-4 | new rating: 1283 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1270 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 484 | Nakano, Syota (1513) | Lost 1-2 | -141256 |
| 2modern | 937 | Abe, Motoshi (1482) | Won 2-1 | +221278 |
| 3modern | 990 | Kai, Masatoshi (1349) | Lost 0-2 | -171261 |
| 4modern | 1204 | Hyodo, Kosuke (1585) | Lost 0-2 | -121249 |
| 5modern | 1140 | Funahashi, Naoya (1446) | Lost 0-2 | -141235 |
| 6modern | 1198 | Katayama, Yuuki (1430) | Lost 0-2 | -151220 |
| top | average opponent: 1468record: 1-5 | new rating: 1220 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1307 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 662 | Chua, Zong En (1482) | Lost 0-2 | -151292 |
| 2standard | 840 | Fukuda, Raito (1481) | Won 2-1 | +211313 |
| 3standard | 961 | Kawashima, Takayuki (1426) | Lost 0-2 | -161297 |
| 4standard | 976 | Okuma, Naoki (1569) | Lost 0-2 | -131284 |
| 5standard | 1095 | Nozaki, Taiki (1467) | Lost 1-2 | -141270 |
| top | average opponent: 1485record: 1-4 | new rating: 1270 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1286 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 427 | Fujita, Taiki (1500) | Lost 1-2 | -141272 |
| 2sealed | 403 | Shimazu, Shizuka (1482) | Won 2-0 | +221294 |
| 3sealed | 274 | Narita, Kouhei (1486) | Won 2-1 | +211315 |
| 4sealed | 363 | Katou, Takayoshi (1490) | Lost 0-2 | -151300 |
| 5sealed | 354 | Miyaoi, Tomoyuki (1521) | Won 2-1 | +221322 |
| 6sealed | 288 | Seko, Kazuki (1469) | Lost 0-2 | -151307 |
| top | average opponent: 1491record: 3-3 | new rating: 1307 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1326 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 901 | Kobori, Tetsuya (1545) | Lost 1-2 | -141312 |
| 2sealed | 904 | Itagaki, Ryuji (1708) | Lost 0-2 | -111301 |
| 3sealed | 1088 | Nakagawa, Masayuki (1462) | Lost 1-2 | -151286 |
| top | average opponent: 1572record: 0-3 | new rating: 1286 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1388 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 163 | Suzuki, Akira (1548) | Lost 0-2 | -151373 |
| 2modern | 495 | Umeyama, Naoki (1414) | Won 2-1 | +191392 |
| 3modern | 433 | Ine, Ryosuke (1500) | Lost 0-2 | -161376 |
| 4modern | 521 | Fujiwara, Takashi (1525) | Lost 0-2 | -151361 |
| 5modern | 482 | Miyazaki, Kazuyuki (1191) | Won 2-1 | +141375 |
| 6modern | 412 | Tsuba, Yuuki (1577) | Lost 0-2 | -141361 |
| 7modern | 379 | Saitou, Daisuke (1287) | Lost 0-2 | -191342 |
| 8modern | 327 | Arai, Yoshimi (1476) | Lost 0-2 | -161326 |
| top | average opponent: 1440record: 2-6 | new rating: 1326 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Ishii, Hayato (1731) | Lost 0-2 | -121373 |
| 2sealed | 341 | Muroi, Satomi (1483) | Won 2-1 | +201393 |
| 3sealed | 331 | Takahashi, Ryota (1459) | Lost 0-2 | -171376 |
| 4sealed | 307 | Hama, Shunsuke (1425) | Lost 1-2 | -171359 |
| 5sealed | 331 | Tabata, Yuusuke (1549) | Lost 1-2 | -141345 |
| 6sealed | 314 | Takeda, Yasuaki (1444) | Won 2-0 | +191364 |
| 7sealed | 243 | Yoshida, Takefumi (1476) | Won 2-0 | +201384 |
| 8sealed | 192 | Okada, Yuya (1486) | Lost 0-2 | -161368 |
| 9sealed | 178 | Shike, Kentarou (1473) | Won 2-0 | +201388 |
| top | average opponent: 1503record: 4-5 | new rating: 1388 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Fujita, Kenichi (1739) | Lost 0-2 | -131454 |
| 2standard | 315 | Karasawa, Ryuichi (1479) | Lost 0-2 | -181436 |
| 3standard | 397 | Ihashi, Toshiya (1463) | Lost 0-2 | -171419 |
| 4standard | 400 | Imamura, Daisuke (1390) | Won 2-1 | +171436 |
| 5standard | 345 | Kamata, Toshihiko (1465) | Lost 0-2 | -171419 |
| 6standard | 319 | Kawada, Naoki (1441) | Lost 0-2 | -181401 |
| 7standard | 277 | Omura, Ryuji (1445) | Won 2-0 | +191420 |
| 8standard | 233 | Hashimoto, Akio (1471) | Lost 0-2 | -171403 |
| 9standard | 356 | Kotani, Sunao (1420) | Lost 1-2 | -181385 |
| top | average opponent: 1479record: 2-7 | new rating: 1385 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 736 | Sekiguchi, Kota (1482) | Lost 0-2 | -181482 |
| 2sealed | 1123 | Tomomura, Hitoshi (1425) | Lost 0-2 | -191463 |
| 3sealed | 1143 | Ikeda, Tsuyoshi (1596) | Won 2-1 | +201483 |
| 4sealed | 1051 | Kokawa, Tsunao (1482) | Won 2-1 | +181501 |
| 5sealed | 969 | Karasawa, Ryuichi (1498) | Lost 1-2 | -181483 |
| 6sealed | 989 | Kashima, Akihiro (1584) | Lost 1-2 | -161467 |
| top | average opponent: 1511record: 2-4 | new rating: 1467 | ||