Tanaka, Kazuhiko
Current rating: 1423
Record: 41-53-2
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 481 | Urasawa, Taiji (1667) | Lost 1-2 | -141454 |
| 4standard | 474 | Hatoyama, Shinya (1488) | Lost 0-2 | -181436 |
| 5standard | 755 | Kasahara, Takuya (1515) | Lost 1-2 | -161420 |
| 6standard | 1060 | Nakamura, Akihiro (1368) | Won 2-0 | +171437 |
| 7standard | 880 | Takeuchi, Makoto (1583) | Lost 1-2 | -161421 |
| 8standard | 789 | Kashi, Touru (1436) | Won 2-0 | +191440 |
| 9standard | 673 | Ohkuma, Atushi (1494) | Lost 1-2 | -171423 |
| top | average opponent: 1507record: 2-5 | new rating: 1423 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 131 | Kan, Shouichirou (1446) | Lost 1-2 | -191467 |
| 2standard | 895 | Huang, Tzu Jui (1482) | Won 2-1 | +191486 |
| 3standard | 1348 | Kubota, Hirofumi (1468) | Won 2-1 | +171503 |
| 4standard | 571 | Takata, Kouhei (1626) | Lost 0-2 | -151488 |
| 5standard | 1079 | Katuyama, Naoki (1592) | Lost 1-2 | -161472 |
| 6standard | 1096 | Higashiyama, Yoshio (1475) | Lost 1-2 | -181454 |
| 7standard | 1204 | Hanano, Tetsuaki (1257) | Won 2-1 | +141468 |
| top | average opponent: 1478record: 3-4 | new rating: 1468 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Kitauchi, Kazuya (1452) | Won 2-0 | +191426 |
| 2standard | 97 | Endo, Shuta (1488) | Won 2-0 | +191445 |
| 3standard | 15 | Kurusu, Kazuki (1601) | Won 2-1 | +211466 |
| 4standard | 97 | Shiba, Yunosuke (1551) | Won 2-1 | +201486 |
| 5standard | 45 | Nagai, Mamoru (1657) | Won 2-1 | +211507 |
| 6standard | 15 | Aranami, Yuuki (1571) | Won 2-1 | +191526 |
| 7standard | 12 | Liu, Yuchen (1910) | Lost 0-2 | -111515 |
| 8standard | 35 | Tan, Raymond (1867) | Lost 1-2 | -121503 |
| 9standard | 195 | Ishizuka, Shoji (1579) | Lost 0-2 | -171486 |
| top | average opponent: 1631record: 6-3 | new rating: 1486 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 88 | Kawakami, Kazuto (1770) | Won 2-1 | +241460 |
| 4standard | 150 | Okada, Jirou (1537) | Won 2-1 | +191479 |
| 5standard | 5 | Miller, Derek (1592) | Lost 1-2 | -161463 |
| 6standard | 147 | Mihara, Makihito (2022) | Lost 1-2 | -91454 |
| 7standard | 261 | Wang, Chih Ming (1610) | Lost 1-2 | -151439 |
| 8standard | 262 | Mashiro, Daisuke (1572) | Lost 0-2 | -151424 |
| 9standard | 270 | Shoji, Tatsuro (1518) | Lost 1-2 | -171407 |
| top | average opponent: 1660record: 2-5 | new rating: 1407 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 875 | Watanabe, Yusuke (1503) | Lost 1-2 | -171403 |
| 3sealed | 859 | Minobe, Yoshihiro (1504) | Lost 0-2 | -161387 |
| 4sealed | 1080 | U., Shougo (1483) | Won 2-1 | +201407 |
| 5sealed | 905 | Kurihara, Yuuji (1517) | Lost 0-2 | -161391 |
| 6sealed | 988 | Akedo, Akihiro (1483) | Won 2-1 | +201411 |
| 7sealed | 908 | Arimura, Yuuki (1505) | Lost 1-2 | -171394 |
| 8sealed | 1034 | Rojanapthayakorn, Pach (1485) | Won 2-1 | +201414 |
| 9sealed | 968 | Yamaguchi, Hiroshi (1627) | Won 2-0 | +221436 |
| top | average opponent: 1514record: 4-4 | new rating: 1436 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1403 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 70 | Sugisawa, Daiki (1496) | Won 2-1 | +201423 |
| 3standard | 236 | Tanaka, Kouichi (1809) | Lost 0-2 | -121411 |
| 4standard | 325 | Honda, Atsuo (1634) | Lost 1-2 | -141397 |
| 5standard | 431 | Kimoto, Keiya (1450) | Won 2-1 | +191416 |
| 6standard | 424 | Takata, Mutsumu (1419) | Lost 0-2 | -181398 |
| 7standard | 458 | Kamei, Kazuhiko (1342) | Lost 0-2 | -191379 |
| 8standard | 404 | Wakita, Daiki (1521) | Won 2-0 | +211400 |
| 9standard | 327 | Nomoto, Hidetaka (1501) | Won 2-1 | +201420 |
| top | average opponent: 1522record: 4-4 | new rating: 1420 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 357 | Endou, Shun (1468) | Won 2-1 | +201426 |
| 2modern | 80 | Wakata, Kazuya (1518) | Lost 0-2 | -171409 |
| 3modern | 581 | Yagi, Hiroyuki (1519) | Won 2-0 | +201429 |
| 4modern | 375 | Tomizawa, Shoudai (1517) | Lost 1-2 | -161413 |
| 5modern | 362 | Oonishi, Tatsuya (1561) | Lost 0-2 | -161397 |
| 6modern | 494 | Takehana, Yuki (1431) | Won 2-1 | +191416 |
| 7modern | 375 | Saito, Shohei (1483) | Won 2-0 | +191435 |
| 8modern | 242 | Yokoyama, Yoshihiro (1483) | Lost 1-2 | -171418 |
| 9modern | 254 | Furuya, Youhei (1581) | Lost 0-2 | -151403 |
| top | average opponent: 1507record: 4-5 | new rating: 1403 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 76 | Satou, Rin (1626) | Lost 1-2 | -151414 |
| 5standard | 134 | Kubouchi, Hayato (1535) | Lost 0-2 | -161398 |
| 6standard | 129 | Ohno, Hirofumi (1486) | Won 2-1 | +201418 |
| 7standard | 141 | Yamasaki, Youhei (1574) | Won 2-1 | +211439 |
| 8standard | 49 | Han, Chin Yao (1558) | Lost 0-2 | -161423 |
| 9standard | 97 | Kumeyama, Yuji (1496) | Lost 0-2 | -171406 |
| top | average opponent: 1546record: 2-4 | new rating: 1406 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 213 | Oda, Naoki (1508) | Draw 1-1 | +11439 |
| 2extended | 171 | Nakabou, Masato (1500) | Lost 1-2 | -171422 |
| 3extended | 245 | Yoshida, Kento (1482) | Lost 0-2 | -171405 |
| 4extended | 316 | Hishida, Akinori (1470) | Lost 1-2 | -161389 |
| 5extended | 293 | M., Yuuki (1426) | Won 2-1 | +181407 |
| 6extended | 244 | Higuchi, Kazuya (1465) | Won 2-1 | +191426 |
| 7extended | 189 | Naito, Yuuki (1481) | Draw 1-1 | +11427 |
| 8extended | 152 | Yoshimura, Motoki (1329) | Won 2-1 | +171444 |
| 9extended | 117 | Usami, Taro (1621) | Lost 0-2 | -151429 |
| top | average opponent: 1476record: 3-4-2 | new rating: 1429 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 42 | Igarashi, Jun (1447) | Lost 1-2 | -181435 |
| 2standard | 303 | Sakamoto, Naruhiko (1483) | Won 2-1 | +191454 |
| 3standard | 290 | Yamaji, Shunichi (1502) | Lost 0-2 | -171437 |
| 4standard | 332 | Makita, Yoshihiko (1483) | Lost 1-2 | -171420 |
| 5standard | 350 | Watanabe, Yuuya (Ibaraki) (1466) | Lost 0-2 | -181402 |
| 6standard | 339 | Kato, Yusuke (1442) | Won 2-0 | +191421 |
| 7standard | 281 | Tatsuhara, Satoshi (1351) | Won 2-1 | +171438 |
| 8standard | 205 | Araki, Youhei (1494) | Lost 0-2 | -171421 |
| 9standard | 179 | Enomoto, Masae (1374) | Won 2-0 | +171438 |
| top | average opponent: 1449record: 4-5 | new rating: 1438 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Umehara, Kei (1473) | Lost 0-2 | -181468 |
| 2sealed | 161 | Ueda, Sunao (1511) | Lost 0-2 | -171451 |
| 3sealed | 182 | Sakamoto, Ryouhei (1464) | Lost 0-2 | -181433 |
| 4sealed | 222 | Togawa, Tanichirou (1450) | Won 2-0 | +181451 |
| 5sealed | 192 | Hiyoshi, Tatsuhiko (1465) | Lost 1-2 | -171434 |
| 6sealed | 166 | Shimodouzono, Shintaro (1447) | Lost 0-2 | -181416 |
| 7sealed | 132 | Lemmon, Andrew (1461) | Won 2-1 | +191435 |
| 8sealed | 107 | Susanto, Samuel (1450) | Won 2-1 | +181453 |
| top | average opponent: 1465record: 3-5 | new rating: 1453 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 174 | Hagiwara, Genta (1472) | Lost 0-2 | -191481 |
| 2sealed | 267 | Yamamoto, Arihiro (1359) | Lost 0-2 | -201461 |
| 3sealed | 271 | Yoshikawa, Yuusuke (1629) | Lost 1-2 | -151446 |
| 4sealed | 301 | Matsumura, Hideyuki (1469) | Won 2-1 | +191465 |
| 5sealed | 258 | Fujihira, Keizou (1516) | Won 2-0 | +191484 |
| 6sealed | 204 | Fukata, Takamasa (1646) | Lost 0-2 | -151469 |
| 7sealed | 183 | Mito, Mitsukuni (1503) | Won 2-1 | +181487 |
| 8sealed | 142 | Kamiya, Shougo (1473) | Lost 0-2 | -181469 |
| 9sealed | 111 | Kamanaka, Yuuhei (1434) | Won 2-0 | +171486 |
| top | average opponent: 1500record: 4-5 | new rating: 1486 | ||