Saitou, Kazuya
Current rating: 1543
Record: 61-66-3
- 2001
- 2002
- 2004
- 2005
- 2006
- 2007
- 2008
- 2009
- 2011
- 2012
- 2015
- 2017
- 2018
- 2019
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 459 | Nishikawa, Yosuke (1500) | Lost 1-2 | -191570 |
| 2sealed | 595 | Kokubun, Taiki (1435) | Won 2-0 | +151585 |
| 3sealed | 896 | Tokeshi, Hiroki (1381) | Lost 0-2 | -211564 |
| 4sealed | 1013 | Takahashi, Akira (1396) | Lost 0-2 | -211543 |
| top | average opponent: 1428record: 1-3 | new rating: 1543 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Saitou, Takanori (1581) | Won 2-0 | +191578 |
| 2sealed | 464 | Takakura, Shinichirou (1456) | Lost 0-2 | -211557 |
| 3sealed | 734 | Satou, Naoki7909 (1520) | Lost 1-2 | -181539 |
| 4sealed | 1058 | Tazawa, Takatoshi (1451) | Won 2-0 | +161555 |
| 5sealed | 547 | Kikuchi, Takashi (1309) | Won 2-0 | +141569 |
| 6sealed | 437 | Yaocheng, Mark (1757) | Won 2-1 | +211590 |
| 7sealed | 336 | Henmi, Naoki (1522) | Won 2-0 | +171607 |
| 8sealed | 352 | Satou, Fumihiko (1635) | Lost 0-2 | -181589 |
| top | average opponent: 1529record: 5-3 | new rating: 1589 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 682 | Yamada, Michihiro (1450) | Won 2-1 | +181507 |
| 2modern | 45 | Tamura, Ryo (1792) | Won 2-1 | +231530 |
| 3modern | 167 | Nagase, Yoshinobu (1532) | Won 2-1 | +181548 |
| 4modern | 173 | Date, Tsutomu (1468) | Lost 0-2 | -201528 |
| 5modern | 461 | Kasuya, Takashi (1574) | Won 2-0 | +191547 |
| 6modern | 202 | Fujiya, Takahiro (1629) | Won 2-0 | +201567 |
| 7modern | 199 | Takeuchi, Yuhei (1574) | Lost 0-2 | -181549 |
| 8modern | 244 | Ishii, Ryou (1639) | Lost 0-2 | -171532 |
| 9modern | 409 | Nakano, Shohei (1537) | Won 2-1 | +181550 |
| 10modern | 212 | Tanaka, Yu 2860 (1552) | Won 2-0 | +191569 |
| 11modern | 247 | Fujikura, Akinori (1634) | Lost 0-2 | -171552 |
| 12modern | 263 | Urase, Ryosuke (1846) | Won 2-0 | +231575 |
| 13modern | 222 | Konishi, So (1581) | Lost 1-2 | -181557 |
| 14modern | 242 | Sotomura, Yoshihiro (1672) | Lost 1-2 | -161541 |
| 15modern | 221 | Nishikawa, Tatsuya 3651 (1545) | Won 2-1 | +181559 |
| top | average opponent: 1602record: 9-6 | new rating: 1559 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 791 | Nisiyama, Haruhiro (1500) | Draw 1-1 | 01485 |
| 2standard | 556 | Higuchi, Masaki (1491) | Lost 0-2 | -181467 |
| 3standard | 1045 | Kikuchi, Takashi (1411) | Won 2-0 | +171484 |
| 4standard | 819 | Clark, Anthonlee (1684) | Won 2-1 | +221506 |
| 5standard | 549 | Fujita, Gensho (1566) | Lost 0-2 | -171489 |
| 6standard | 743 | Oguri, Kouhei (1502) | Lost 1-2 | -181471 |
| 7standard | 727 | Asai, Hiroto (1520) | Won 2-1 | +191490 |
| 8standard | 553 | Takamatsu, Daiki (1499) | Lost 0-2 | -181472 |
| 9standard | 504 | Masuda, Tomohito (1431) | Won 2-0 | +171489 |
| top | average opponent: 1511record: 4-4-1 | new rating: 1489 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Kai, Hiroyuki (1521) | Won 2-0 | +201458 |
| 2sealed | 14 | Gao, Tan (1501) | Lost 1-2 | -171441 |
| 3sealed | 372 | Oonishi, Takahisa (1422) | Won 2-0 | +171458 |
| 4sealed | 330 | Sakamoto, Masaaki (1444) | Won 2-0 | +181476 |
| 5sealed | 204 | Kenji W., (1536) | Won 2-0 | +191495 |
| 6sealed | 64 | Takagi, Yui (1786) | Lost 0-2 | -131482 |
| 7sealed | 193 | Ootake, Masanori (1488) | Won 2-0 | +181500 |
| 8sealed | 109 | Honda, Atsuo (1628) | Lost 1-2 | -151485 |
| top | average opponent: 1541record: 5-3 | new rating: 1485 | ||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 48 | Ando, Junichi (1389) | Lost 1-2 | -201474 |
| 2standard | 211 | Araki, Youhei (1474) | Lost 0-2 | -181456 |
| 3standard | 274 | Iizuka, Hitoshi (1464) | Lost 1-2 | -181438 |
| top | average opponent: 1443record: 0-3 | new rating: 1438 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 12 | Miyazaki, Michimasa (1500) | Won 2-0 | +191452 |
| 2sealed | 58 | Tasaki, Yasuhiro (1514) | Won 2-1 | +201472 |
| 3sealed | 57 | Hayashi, Nobuyoshi (1530) | Won 2-0 | +191491 |
| 4sealed | 7 | Morita, Kouki (1555) | Won 2-0 | +191510 |
| 5sealed | 33 | Yamada, Ryuichiro (1656) | Lost 0-2 | -161494 |
| 6sealed | 45 | Kitahara, Hiroaki (1507) | Lost 1-2 | -171477 |
| 7sealed | 60 | Taniguchi, Hiroaki (1600) | Won 2-0 | +201497 |
| 8sealed | 40 | Kikuchi, Yuuji (1765) | Won 2-0 | +231520 |
| 10draft | 37 | Sawada, Ken (1624) | Won 2-0 | +201540 |
| 11draft | 13 | Aka, Shunsuke (1610) | Lost 1-2 | -171523 |
| 12draft | 2 | Matsuyama, Satoshi (1594) | Lost 0-2 | -171506 |
| 13draft | 11 | Shiozu, Ryouma (1849) | Lost 0-2 | -121494 |
| top | average opponent: 1609record: 7-5 | new rating: 1494 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 112 | Miyazaki, Yasuhiro (1561) | Won 2-1 | +201468 |
| 2extended | 54 | Sasaki, Kazuma (1520) | Won 2-0 | +191487 |
| 3extended | 62 | Yamamoto, Daichi (1498) | Lost 0-2 | -181469 |
| 4extended | 127 | Jinbu, Yousuke (1486) | Lost 0-2 | -181451 |
| 5extended | 171 | Tamura, Tomoaki (1449) | Lost 1-2 | -181433 |
| top | average opponent: 1503record: 2-3 | new rating: 1433 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 208 | Yashiki, Kouichi (1477) | Lost 0-0 | -171387 |
| 2sealed | 260 | Asano, Kousuke (1483) | Won 2-1 | +201407 |
| 3sealed | 190 | Shigehara, Akinori (1384) | Won 2-0 | +171424 |
| 4sealed | 161 | Koshimoto, Daiki (1517) | Won 2-1 | +201444 |
| 5sealed | 89 | Kawakami, Hiroshi (1682) | Won 2-0 | +221466 |
| 6sealed | 132 | Toyota, Hiroki (1439) | Lost 0-2 | -181448 |
| top | average opponent: 1497record: 4-2 | new rating: 1448 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1337 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 116 | Sasaki, Masaya (1440) | Lost 0-2 | -161321 |
| 3block | 282 | Hayashi, Masahito (1594) | Lost 0-2 | -131308 |
| 4block | 302 | Suzuki, Yuuji (Aichi (1480) | Won 2-1 | +211329 |
| 5block | 194 | Anan, Kazuyoshi (1527) | Won 2-0 | +211350 |
| 6block | 189 | Ishihara, Susumu (1518) | Won 2-0 | +211371 |
| 7block | 112 | Yamamoto, Shouhei (1845) | Won 2-1 | +261397 |
| 8block | 52 | Ito, Wataru (1530) | Won 2-1 | +211418 |
| 9block | 33 | Kawate, Junpei (1629) | Lost 1-2 | -141404 |
| top | average opponent: 1570record: 5-3 | new rating: 1404 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1364 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Siao, G. Shung (1539) | Lost 1-2 | -151349 |
| 2sealed | 103 | Takasaki, Yuichi (1611) | Lost 0-2 | -131336 |
| 3sealed | 137 | Hyakutake, Junji (1431) | Won 2-0 | +191355 |
| 4sealed | 144 | Hirashima, Yuutarou (1325) | Lost 0-2 | -181337 |
| top | average opponent: 1477record: 1-3 | new rating: 1337 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1419 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 64 | Toyama, Kazuaki (1469) | Lost 1-2 | -171402 |
| 2standard | 243 | Iioka, Kayoko (1315) | Lost 1-2 | -191383 |
| 3standard | 358 | Oohira, Kenta (1332) | Lost 0-2 | -191364 |
| top | average opponent: 1372record: 0-3 | new rating: 1364 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Shiraishi, Hiroaki (1568) | Lost 0-2 | -151377 |
| 2sealed | 124 | Takemoto, Yoshiyasu (1482) | Won 2-0 | +201397 |
| 3sealed | 79 | Kubouchi, Naoki (1617) | Won 2-1 | +221419 |
| 4sealed | 62 | Sakai, Yoshitoki (1479) | Won 2-0 | +191438 |
| 5sealed | 93 | Itou, Takanori (1404) | Lost 0-2 | -191419 |
| top | average opponent: 1510record: 3-2 | new rating: 1419 | ||
| Grand Prix Kitakyushu 2005 (extended) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 66 | Nakaoka, Shinya (1504) | Lost 1-2 | -171403 |
| 2extended | 80 | Takemoto, Takaaki (1452) | Lost 1-2 | -171386 |
| 3extended | 106 | Itou, Satoshi (1482) | Won 2-1 | +201406 |
| 4extended | 104 | Ogata, Atsushi (1497) | Won 2-0 | +201426 |
| 5extended | 82 | Shibata, Yuki (1496) | Lost 1-2 | -171409 |
| 6extended | 95 | Yuda, Shogo (1466) | Lost 0-2 | -171392 |
| top | average opponent: 1483record: 2-4 | new rating: 1392 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 31 | Omori, Ken'ichirou (1393) | Won 2-1 | +171452 |
| 2sealed | 25 | Ueda, Sunao (1579) | Lost 0-2 | -161436 |
| 3sealed | 109 | Yamasaki, Kishun (1521) | Lost 0-2 | -161420 |
| top | average opponent: 1497record: 1-2 | new rating: 1420 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Toochika, Takayuki (1447) | Lost 1-2 | -181415 |
| 2sealed | 217 | Imai, Takashi (1523) | Draw 1-1 | +21417 |
| 3sealed | 263 | Ogura, Shigeru (1411) | Won 2-0 | +181435 |
| 4sealed | 211 | Yasukawa, Kazuhide (1402) | Lost 0-2 | -181417 |
| 5sealed | 223 | Kubota, Taiga (1423) | Won 2-1 | +181435 |
| top | average opponent: 1441record: 2-2-1 | new rating: 1435 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1 | Jinbu, Yousuke (1446) | Lost 0-2 | -191450 |
| 2standard | 368 | Watanabe, Taketoshi (1425) | Lost 1-2 | -181432 |
| 3standard | 390 | Seki, Yuujiro (1464) | Won 2-0 | +191451 |
| 4standard | 363 | Oodan, Takeshi (1482) | Lost 0-2 | -181433 |
| top | average opponent: 1454record: 1-3 | new rating: 1433 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1382 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 72 | Deyama, Hirofumi (1399) | Lost 1-2 | -181364 |
| 2extended | 140 | Uematsu, Kei (1482) | Won 2-0 | +201384 |
| 3extended | 149 | Katou, Masanari (1523) | Won 2-1 | +211405 |
| 4extended | 63 | Yano, Yuuya (1503) | Won 2-0 | +191424 |
| 5extended | 47 | Miura, Hiroyuki (1513) | Won 2-0 | +201444 |
| 6extended | 41 | Aoki, Masanori (1494) | Won 2-0 | +191463 |
| 7extended | 12 | Ishida, Naoyuki (1576) | Won 2-1 | +201483 |
| 8extended | 15 | Arita, Ryuichi (1702) | Lost 0-2 | -141469 |
| top | average opponent: 1524record: 6-2 | new rating: 1469 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Shudo, Masanori (1501) | Lost 1-2 | -171411 |
| 2sealed | 140 | Hyakutake, Junji (1482) | Lost 0-2 | -161395 |
| 3sealed | 179 | Araki, Daiki (1464) | Won 2-0 | +191414 |
| 4sealed | 170 | Nakao, Ryuma (1482) | Won 2-0 | +191433 |
| 5sealed | 104 | Ozaki, Youichirou (1485) | Lost 1-2 | -171416 |
| 6sealed | 126 | Hattori, Shinichi (1480) | Lost 1-2 | -171399 |
| 7sealed | 139 | Nakamura, Hirobumi (1423) | Lost 0-2 | -171382 |
| top | average opponent: 1474record: 2-5 | new rating: 1382 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Suzuki, Ryo (1500) | Lost 0-2 | -181482 |
| 2sealed | 170 | Ueno, Motohiro (1483) | Draw 1-1 | 01482 |
| 3sealed | 168 | Kim, Joo Nyun (1482) | Lost 1-2 | -181464 |
| 4sealed | 185 | Noguchi, Masami (1463) | Lost 0-2 | -181446 |
| 5sealed | 167 | Sasaki, Shinjiro (1444) | Won 2-0 | +181464 |
| 6sealed | 143 | Harada, Takeshi (1464) | Lost 0-2 | -181446 |
| 7sealed | 122 | Mikami, Tomokazu (1445) | Lost 1-2 | -181428 |
| top | average opponent: 1469record: 1-5-1 | new rating: 1428 | ||