Karasawa, Kouichi
Current rating: 1368
Record: 15-23-1
| Grand Prix Chiba 2016 (legacy) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 257 | Yuuta, Tomomisu (1500) | Lost 0-2 | -171394 |
| 2legacy | 827 | Yamaguchi, Takao (1384) | Lost 0-2 | -181376 |
| 3legacy | 1177 | Kiura, Tatsuya (1427) | Lost 0-2 | -171359 |
| 4legacy | 1136 | Suguru, Tukada (1448) | Won 2-0 | +201379 |
| 5legacy | 1038 | Abe, Youhei (1463) | Lost 0-2 | -171362 |
| 6legacy | 1042 | Ables, Angelo (1444) | Won 2-1 | +201382 |
| 7legacy | 888 | Ichikawa, Hiroshi (1383) | Lost 1-2 | -181364 |
| 8legacy | 853 | Ookubo, Jyunpei (1480) | Won 2-1 | +201384 |
| 9legacy | 727 | Wada, Yuusaku (1489) | Lost 0-2 | -161368 |
| top | average opponent: 1446record: 3-6 | new rating: 1368 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 304 | Jikumaru, Yonekazu (1412) | Lost 0-2 | -181406 |
| 2legacy | 345 | Kiyokane, Yoshifumi (1428) | Won 2-1 | +181424 |
| 3legacy | 360 | Iguchi, Tomohiro (1453) | Won 2-1 | +191443 |
| 4legacy | 216 | Akamatsu, Koushi (1518) | Lost 0-2 | -171426 |
| 5legacy | 343 | Naritori, Takumi (1502) | Lost 0-2 | -171409 |
| 6legacy | 307 | Ogawa, Satoshi (1478) | Draw 1-1 | +21411 |
| top | average opponent: 1465record: 2-3-1 | new rating: 1411 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Akamatsu, Yoshiki (1522) | Lost 0-2 | -171440 |
| 2sealed | 353 | Oda, Yuuki (1482) | Lost 0-2 | -171423 |
| 3sealed | 461 | Tanaka, Naohiro (1429) | Won 2-1 | +181441 |
| 4sealed | 378 | Shibakiri, Kisho (1483) | Won 2-0 | +191460 |
| 5sealed | 348 | Miyake, Kyohei (1410) | Lost 1-2 | -191441 |
| 6sealed | 339 | Kawakita, Kairi (1482) | Lost 1-2 | -171424 |
| top | average opponent: 1468record: 2-4 | new rating: 1424 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 193 | Kamiya, Kazuhiro (1368) | Won 2-0 | +151533 |
| 2modern | 284 | Katayose, Shingo (1699) | Lost 0-2 | -151518 |
| 3modern | 374 | Taro, Ito (1497) | Won 2-1 | +171535 |
| 4modern | 283 | Morita, Masayuki (1405) | Lost 1-2 | -201515 |
| 5modern | 356 | Umeki, Ryo (1498) | Lost 0-2 | -181497 |
| 6modern | 542 | Tsuchitani, Takahiro (1470) | Won 2-1 | +171514 |
| 7modern | 376 | Akita, Naoto (1558) | Lost 0-2 | -171497 |
| 8modern | 323 | Naito, Yuuki (1444) | Lost 1-2 | -191478 |
| 9modern | 283 | Kawakami, Masashi (1323) | Lost 0-2 | -211457 |
| top | average opponent: 1474record: 3-6 | new rating: 1457 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 187 | Hamano, Kouhei (1500) | Won 2-1 | +181518 |
| 2extended | 22 | Narumiya, Ryuuma (1520) | Lost 0-2 | -181500 |
| 3extended | 186 | Ogawara, Takao (1501) | Won 2-0 | +181518 |
| 4extended | 175 | Inoue, Junji (1594) | Lost 0-2 | -171501 |
| 5extended | 345 | Nakagawa, Shinichi (1498) | Lost 1-2 | -181483 |
| 6extended | 339 | Fujimori, Masayoshi (1456) | Lost 1-2 | -181465 |
| 7extended | 270 | Sugita, Kou (1462) | Won 2-0 | +181483 |
| 8extended | 113 | Hiroki, Ryouta (1480) | Won 2-0 | +181501 |
| 9extended | 136 | Sasaki, Yuusuke (Osaka) (1431) | Won 2-0 | +171518 |
| top | average opponent: 1494record: 5-4 | new rating: 1518 | ||