Okada, Seiji
Current rating: 1719 (#5340)
Record: 31-17-6
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1700 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 79 | Mori, Kouichi (1558) | Won 2-1 | +151715 |
| 2standard | 236 | Tsuyuzaki, Shigeru (1518) | Won 2-0 | +141729 |
| 3standard | 299 | Kono, Toru (1500) | Lost 1-2 | -221707 |
| 4standard | 913 | Kumagai, Masahiro (1541) | Won 2-1 | +151722 |
| 5standard | 234 | Itou, Kenshirou (1782) | Lost 1-2 | -171705 |
| 6standard | 957 | Takehana, Yuki (1489) | Won 2-0 | +151720 |
| 7standard | 595 | Ooneda, Yoshihiro (1599) | Won 2-1 | +151735 |
| 8standard | 379 | Yasuhara, Seito (1555) | Won 2-0 | +151750 |
| 9standard | 113 | Omonishi, Kojiro (1580) | Won 2-0 | +151765 |
| 10standard | 155 | Matsubara, Yuusuke (1651) | Draw 1-1 | -21763 |
| 11standard | 147 | Shin, Jong-Ho (1653) | Won 2-1 | +161779 |
| 12standard | 86 | Uzawa, Yuichi (1735) | Lost 1-2 | -191760 |
| 13standard | 158 | Oikawa, Hakudou (1779) | Lost 0-2 | -171743 |
| 14standard | 217 | Maruyama, Shouta (1650) | Draw 1-1 | -21741 |
| 15standard | 235 | Fujiwara, Takahito (1554) | Lost 1-2 | -221719 |
| top | average opponent: 1610record: 8-5-2 | new rating: 1719 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Shibuya, Tsutomu (1568) | Won 2-0 | +171638 |
| 2sealed | 169 | Usami, Taro (1716) | Won 2-0 | +191657 |
| 3sealed | 71 | Mitsuya, Kazuhiko (1834) | Won 2-0 | +221679 |
| 4sealed | 9 | Ozawa, Takeshi (1544) | Won 2-1 | +151694 |
| 5sealed | 14 | Oomori, Kazuki (1657) | Lost 0-2 | -191675 |
| 6sealed | 49 | Saito, Takanobu (1532) | Draw 1-1 | -21673 |
| 7sealed | 58 | Aridome, Tomohiro (1613) | Won 2-0 | +171690 |
| 8sealed | 117 | Shibata, Toshiya (1620) | Won 2-0 | +171707 |
| 9rochester | 10 | Shirakura, Tsuyoshi (1654) | Won 2-1 | +171724 |
| 10rochester | 27 | Nikkuni, Fumihito (1665) | Lost 0-2 | -191705 |
| 11rochester | 4 | Maki, Ryosuke (1523) | Lost 0-2 | -221683 |
| 12rochester | 27 | Hayashi, Hiroki (1726) | Won 2-0 | +191702 |
| 13rochester | 1 | Shirakura, Tsuyoshi (1653) | Won 2-0 | +171719 |
| 14rochester | 11 | Nonaka, Kentarou (1635) | Lost 0-2 | -191700 |
| top | average opponent: 1639record: 9-4-1 | new rating: 1700 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 114 | Kitazawa, Kiyohiro (1537) | Won 2-0 | +201469 |
| 2standard | 58 | Sato, Rei (1500) | Lost 0-2 | -171452 |
| 3standard | 321 | Matsumoto, Masato (1499) | Won 2-0 | +191471 |
| 4standard | 129 | Suda, Makoto (1497) | Won 2-0 | +181489 |
| 5standard | 198 | Takamatsu, Hiroomi (1460) | Won 2-1 | +171506 |
| 6standard | 34 | Tanaka, Yasuo (1553) | Won 2-0 | +191525 |
| 7standard | 22 | Katayose, Shingo (1544) | Won 2-1 | +191544 |
| 8standard | 30 | Seki, Keita (1552) | Won 2-0 | +181562 |
| 9standard | 9 | Nakano, Fumiki (1639) | Won 2-0 | +191581 |
| 10standard | 16 | Hashimoto, Keisuke (1590) | Lost 0-2 | -181563 |
| 11standard | 39 | Katayama, Takahiro (1679) | Won 2-0 | +201583 |
| 12standard | 31 | Sahasi, Yuki (1603) | Won 2-0 | +191602 |
| 13standard | 16 | Furukawa, Ken'ichi (1687) | ID | 01602 |
| 14standard | 7 | Kito, Takeshi (1619) | Draw 1-1 | 01602 |
| 15standard | 44 | Nonaka, Kentarou (1646) | Won 2-1 | +191621 |
| top | average opponent: 1574record: 11-2-2 | new rating: 1621 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 165 | Abe, Satoshi (1500) | Lost 0-2 | -171447 |
| 2block | 328 | Yasutake, Hiroyuki (1482) | Won 2-1 | +181465 |
| 3block | 281 | Nishioka, Kazuya (1469) | Lost 1-2 | -181447 |
| 4block | 297 | Ikeda, Naoto (1500) | Won 2-0 | +191466 |
| 5block | 269 | Kabamoto, Sin (1500) | Draw 1-1 | +11467 |
| 6block | 232 | Hakamata, Hiroaki (1502) | Lost 0-2 | -181449 |
| top | average opponent: 1492record: 2-3-1 | new rating: 1449 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 14 | Tomita, Kayoko (1449) | Draw 1-1 | -11499 |
| 2sealed | 178 | Sakai, Naoko (1560) | Lost 1-2 | -171482 |
| 3sealed | 253 | Ozawa, Takeshi (1484) | Won 1-0 | +181500 |
| 4sealed | 195 | Fukuda, Kazuhiro (1499) | Lost 1-2 | -181482 |
| 5sealed | 219 | Nozu, Shizutaka (1465) | Lost 1-2 | -181464 |
| top | average opponent: 1491record: 1-3-1 | new rating: 1464 | ||