Kou, Nobuaki
Current rating: 1390
Record: 20-29-1
| Grand Prix Kobe 2009 (extended) | starting rating: 1416 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 12 | Zeil, Jean-Julien (1619) | Lost 0-2 | -141402 |
| 2extended | 188 | Mukuno, Yuuji (1524) | Lost 0-2 | -161386 |
| 3extended | 238 | Kaji, Kyousuke (1429) | Won 2-1 | +191405 |
| 4extended | 245 | Matsushita, Masakazu (1585) | Lost 0-2 | -151390 |
| top | average opponent: 1539record: 1-3 | new rating: 1390 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 98 | Yamano, Tatsuto (1474) | Lost 0-2 | -171389 |
| 2standard | 334 | Suzuki, Kentaro (1482) | Won 2-1 | +201409 |
| 3standard | 290 | toriyama, hiroki (1503) | Lost 0-2 | -171392 |
| 4standard | 367 | Shiraishi, Kenji (1484) | Won 2-0 | +201412 |
| 5standard | 256 | Nagahiro, Masato (1503) | Lost 1-2 | -161396 |
| 6standard | 251 | Ichinose, Yuki (1535) | Won 2-1 | +201416 |
| top | average opponent: 1497record: 3-3 | new rating: 1416 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Otsuka, Hiroki (1448) | Won 2-0 | +181456 |
| 2sealed | 38 | Ikeda, Yutaka (1518) | Lost 1-2 | -171439 |
| 3sealed | 112 | Konta, Hidetaka (1500) | Lost 0-2 | -171422 |
| 4sealed | 137 | Noji, Tomoyuki (1484) | Lost 1-2 | -161406 |
| top | average opponent: 1488record: 1-3 | new rating: 1406 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 15 | Kaida, Tatsuya (1500) | Won 2-0 | +191447 |
| 2extended | 20 | Ozaki, Youichirou (1461) | Lost 1-2 | -181429 |
| 3extended | 70 | Shimizu, Hideaki (1498) | Won 2-1 | +191448 |
| 4extended | 74 | Kurakami, Shun (1646) | Lost 0-2 | -141434 |
| 5extended | 91 | Fukai, Kazunobu (1502) | Won 2-0 | +191453 |
| 6extended | 62 | Tanaka, Atsushi (1609) | Lost 1-2 | -151438 |
| top | average opponent: 1536record: 3-3 | new rating: 1438 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 57 | Suzuki, Ryuuichi (1436) | Lost 1-2 | -181425 |
| 2block | 124 | Saito, Kunihiro (1500) | Won 2-0 | +201445 |
| 3block | 135 | Ono, Masayuki (1425) | Lost 1-2 | -191426 |
| 4block | 175 | Ozawa, Ryuuichi (1485) | Won 2-0 | +191445 |
| 5block | 148 | Yamashita, Takayuki (1466) | Lost 1-2 | -171428 |
| top | average opponent: 1462record: 2-3 | new rating: 1428 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Hirai, Kenta (1567) | Lost 0-2 | -171458 |
| 2sealed | 115 | Ogawa, Yoshito (1482) | Won 2-1 | +191477 |
| 3sealed | 137 | Suzuki, Kenta (1588) | Lost 0-2 | -161461 |
| 4sealed | 174 | Motonaga, Hiroaki (1482) | Lost 0-2 | -181443 |
| top | average opponent: 1530record: 1-3 | new rating: 1443 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 7 | Oikawa, Mutsuki (1521) | Won 2-1 | +191515 |
| 2standard | 13 | Watanabe, Hiroyuki (1491) | Lost 0-2 | -191496 |
| 3standard | 282 | Yamada, Uchu (1427) | Lost 1-2 | -191477 |
| 4standard | 350 | Yasukawa, Kazuhide (1390) | Won 2-1 | +161493 |
| 5standard | 231 | Tatsumi, Yasuhiro (1461) | Lost 1-2 | -181475 |
| top | average opponent: 1458record: 2-3 | new rating: 1475 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 32 | Kamei, Shunsuke (1556) | Won 2-1 | +201501 |
| 2sealed | 54 | Nakamura, Takanori (1533) | Won 2-1 | +181519 |
| 3sealed | 19 | Kinoshita, Junichi (1893) | Lost 1-2 | -111508 |
| 4sealed | 170 | Kaneko, Masanori (1556) | Won 2-1 | +191527 |
| 5sealed | 110 | Kashima, Akihiro (1859) | Lost 0-2 | -121515 |
| 6sealed | 124 | Hirose, Yuuki (1498) | Lost 0-2 | -191496 |
| top | average opponent: 1649record: 3-3 | new rating: 1496 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 265 | Tashiro, Yoshiaki (1500) | Lost 0-2 | -181482 |
| 2block | 414 | Matsuo, Kazuki (1482) | Won 2-1 | +181500 |
| 3block | 296 | Toochika, Takayuki (1465) | Won 2-1 | +171517 |
| 4block | 374 | Sunada, Yoshimasa (1518) | Lost 0-2 | -181499 |
| 5block | 325 | Oosaki, Masakazu (1500) | Lost 0-2 | -181481 |
| top | average opponent: 1493record: 2-3 | new rating: 1481 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 244 | Korenori, Makoto (1500) | Won 2-1 | +181518 |
| 2extended | 3 | Mayuzumi, Shinichi (1518) | Lost 1-2 | -181500 |
| 3extended | 195 | Konishi, Yoshimi (1535) | Draw 1-1 | +11501 |
| 4extended | 240 | Azuma, Kiyohiko (1482) | Won 2-1 | +171518 |
| 5extended | 184 | Ichikawa, Yasura (1498) | Lost 0-2 | -181500 |
| top | average opponent: 1507record: 2-2-1 | new rating: 1500 | ||